weight gain Archives - Revista Brasileira de Ginecologia e Obstetrícia
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2012;34(8):386-393
DOI 10.1590/S0100-72032012000800008
PURPOSE: To evaluate sociodemographic, behavioral and reproductive factors and morbidities associated with inadequate weight gain during pregnancy. METHODS: Cohort study conducted from December 2007 to August 2008 with women in the first trimester of pregnancy looking for prenatal care in the Public Health System who lived in the cities of Petrópolis or Queimados, Rio de Janeiro state (Brazil). Women with multiple pregnancy, who had a miscarriage in the index pregnancy or who lacked information for the assessment of pregravid nutritional status or weight gain were excluded. Pregravid nutritional status and weight gain during pregnancy were determined according to the criterion established by the Institute of Medicine (IOM). Statistical analysis was performed using a multinomial logistic regression model. RESULTS: A total of 1,287 women were included in the study; 26.6% of them were overweight or obese while 11% were underweight. Inadequate weight gain during pregnancy was observed in 71.4% of pregnant women; 35.6% of them did not gain enough weight while 35.8% gained more weight than recommended by the IOM. In the multivariate analysis, women with hypertension (OR=2.1; 95%CI 1.4-3.1), pregravid overweight (OR=2.5; 95%CI 1.4-4.5) or obesity (OR=2.7; 95%CI 1.8-3.9) and who had a higher educational level were more likely to gain more weight than recommended, while pregravid underweight (OR=0.6; 95%CI 0.4-0.9) represented a protection against excessive gain. CONCLUSION: Pregravid nutritional diagnosis and weight gain monitoring should be actions effectively instituted in the routine of health professionals.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2012;34(8):386-393
DOI 10.1590/S0100-72032012000800008
PURPOSE: To evaluate sociodemographic, behavioral and reproductive factors and morbidities associated with inadequate weight gain during pregnancy. METHODS: Cohort study conducted from December 2007 to August 2008 with women in the first trimester of pregnancy looking for prenatal care in the Public Health System who lived in the cities of Petrópolis or Queimados, Rio de Janeiro state (Brazil). Women with multiple pregnancy, who had a miscarriage in the index pregnancy or who lacked information for the assessment of pregravid nutritional status or weight gain were excluded. Pregravid nutritional status and weight gain during pregnancy were determined according to the criterion established by the Institute of Medicine (IOM). Statistical analysis was performed using a multinomial logistic regression model. RESULTS: A total of 1,287 women were included in the study; 26.6% of them were overweight or obese while 11% were underweight. Inadequate weight gain during pregnancy was observed in 71.4% of pregnant women; 35.6% of them did not gain enough weight while 35.8% gained more weight than recommended by the IOM. In the multivariate analysis, women with hypertension (OR=2.1; 95%CI 1.4-3.1), pregravid overweight (OR=2.5; 95%CI 1.4-4.5) or obesity (OR=2.7; 95%CI 1.8-3.9) and who had a higher educational level were more likely to gain more weight than recommended, while pregravid underweight (OR=0.6; 95%CI 0.4-0.9) represented a protection against excessive gain. CONCLUSION: Pregravid nutritional diagnosis and weight gain monitoring should be actions effectively instituted in the routine of health professionals.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2011;33(10):310-314
DOI 10.1590/S0100-72032011001000007
PURPOSE: to evaluate the effect of hormone replacement therapy (HT) on the weight on perimenopausal women as well as the effect of different treatment regimens on this parameter. METHODS: a retrospective study of 139 women with menopause for less than 2 years, who were monitored with periodical visits in our department. We compared two groups: women who started HT (n=89) with women who had no hormonal treatment (n=50) and in the two groups, we evaluated the changes in body weight over a 1-year period. In the first group, we assessed the same parameter as a function of different treatment regimens: estrogen alone versus estrogen combined with progestin and standard dose versus low dose. The SPSS® program was used for statistical analysis, with the level of significance set at p<0.05. RESULTS: the groups were similar with respect to demographic and baseline characteristics; weight gain was higher in the untreated group (434 vs 76 g), but the difference observed was not significant (p = 0.406); among HT users, those taking estrogen alone had an increased weight gain compared to women taking estrogen with progestin (775 vs 24 g), although no statistically significant difference was observed and the same applied when comparing the dose initially prescribed (92 vs 49 g). CONCLUSIONS: despite the common belief about weight gain associated with HT, the results of the present study seem to contradict this point, with no additional weight gain beyond that normally associated with this period in a woman´s life.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2011;33(10):310-314
DOI 10.1590/S0100-72032011001000007
PURPOSE: to evaluate the effect of hormone replacement therapy (HT) on the weight on perimenopausal women as well as the effect of different treatment regimens on this parameter. METHODS: a retrospective study of 139 women with menopause for less than 2 years, who were monitored with periodical visits in our department. We compared two groups: women who started HT (n=89) with women who had no hormonal treatment (n=50) and in the two groups, we evaluated the changes in body weight over a 1-year period. In the first group, we assessed the same parameter as a function of different treatment regimens: estrogen alone versus estrogen combined with progestin and standard dose versus low dose. The SPSS® program was used for statistical analysis, with the level of significance set at p<0.05. RESULTS: the groups were similar with respect to demographic and baseline characteristics; weight gain was higher in the untreated group (434 vs 76 g), but the difference observed was not significant (p = 0.406); among HT users, those taking estrogen alone had an increased weight gain compared to women taking estrogen with progestin (775 vs 24 g), although no statistically significant difference was observed and the same applied when comparing the dose initially prescribed (92 vs 49 g). CONCLUSIONS: despite the common belief about weight gain associated with HT, the results of the present study seem to contradict this point, with no additional weight gain beyond that normally associated with this period in a woman´s life.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2011;33(2):87-92
DOI 10.1590/S0100-72032011000200006
PURPOSE: to determine the dietary consumption of pregnant women, by assessing the intake of macronutrients and micronutrients, and to verify the maternal weight gain during pregnancy. METHODS: a retrospective study conducted from June 2002 to June 2008 with pregnant women who received nutritional counseling during prenatal care at a university hospital, grouped according to anthropometric nutritional status classified by pregestational body mass index (BMI). The dietary intake was analyzed according to the information obtained in food frequency interviews, performed at the first evaluation of pregnant women in the service of nutrition to obtain data about eating habits, and the intake of macronutrients and micronutrients was calculated. The pregnant women received nutritional counseling, and the maternal weight gain was investigated. RESULTS: a total of 187 pregnant women who received nutritional counseling were analyzed. Twenty-three (12.2%) were underweight, 84 (45.0%) normal weight, 37 (19.8%) overweight, and 43 (23.0%) obese. The underweight pregnant women had lower consumption of lipids when compared to the normal weight group (101.4 versus 137.3 g; p=0.043). The average iron intake was higher in normal weight pregnant women (14.6 mg/d) compared to the overweight (12.2 mg/d) or obese (10.9 mg/d; p<0.001) groups. The average intake of folate was higher in normal weight pregnant women compared to obese ones (336.5 µg/d versus 234.5 µg/d; p=0.002). Excessive maternal weight gain was significantly (p=0.009) more frequent in overweight (56.7%) and obese (39.5%) pregnant women compared to underweight (17.4%) and normal weight (31.0%) women. CONCLUSIONS: The maternal weight gain above recommended levels was associated with overweight and obesity. The dietary intake of pregnant women differs according to maternal anthropometric nutritional status, with a lower daily intake of iron in overweight and obese women and a lower intake of folate in obese ones, a fact that reinforces the importance of prenatal vitamin supplementation.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2011;33(2):87-92
DOI 10.1590/S0100-72032011000200006
PURPOSE: to determine the dietary consumption of pregnant women, by assessing the intake of macronutrients and micronutrients, and to verify the maternal weight gain during pregnancy. METHODS: a retrospective study conducted from June 2002 to June 2008 with pregnant women who received nutritional counseling during prenatal care at a university hospital, grouped according to anthropometric nutritional status classified by pregestational body mass index (BMI). The dietary intake was analyzed according to the information obtained in food frequency interviews, performed at the first evaluation of pregnant women in the service of nutrition to obtain data about eating habits, and the intake of macronutrients and micronutrients was calculated. The pregnant women received nutritional counseling, and the maternal weight gain was investigated. RESULTS: a total of 187 pregnant women who received nutritional counseling were analyzed. Twenty-three (12.2%) were underweight, 84 (45.0%) normal weight, 37 (19.8%) overweight, and 43 (23.0%) obese. The underweight pregnant women had lower consumption of lipids when compared to the normal weight group (101.4 versus 137.3 g; p=0.043). The average iron intake was higher in normal weight pregnant women (14.6 mg/d) compared to the overweight (12.2 mg/d) or obese (10.9 mg/d; p<0.001) groups. The average intake of folate was higher in normal weight pregnant women compared to obese ones (336.5 µg/d versus 234.5 µg/d; p=0.002). Excessive maternal weight gain was significantly (p=0.009) more frequent in overweight (56.7%) and obese (39.5%) pregnant women compared to underweight (17.4%) and normal weight (31.0%) women. CONCLUSIONS: The maternal weight gain above recommended levels was associated with overweight and obesity. The dietary intake of pregnant women differs according to maternal anthropometric nutritional status, with a lower daily intake of iron in overweight and obese women and a lower intake of folate in obese ones, a fact that reinforces the importance of prenatal vitamin supplementation.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2011;33(1):13-19
DOI 10.1590/S0100-72032011000100002
PURPOSE: to evaluate the impact of dietary counseling on controlling weight gain in pregnant women, who were served in a public health service facility. METHODS: the study was conducted at a known health unit located in the metropolitan region of the city of Porto Alegre, in Rio Grande do Sul, Brazil. Three hundred and fifteen pregnant women between the 10th and 29th week of gestation were randomized to Control and Intervention Groups. The Intervention Group received dietary counseling according to nutritional status, and pregnant women in the Control Group were instructed to follow the routine of the health service facility. Weight and height were measured, and the body mass index (BMI) was calculated. The pre-gestational nutritional status was determined according to the following BMI criteria: low weight (<18.5 kg/m²), eutrophy (18.5 to 24.9 kg/m²), overweight (25.0 to 29.9 kg/m²), and obesity (>30 kg/m²). The nutritional status during pregnancy was determined according to the BMI curve for gestational age adopted by the Health Ministry of Brazil. Data were analyzed by the relative risk and respective 95% confidence interval, and by the Student's t-test and χ2 test. Statistical significance was set at p<0.05. RESULTS: the assessment of nutritional status before pregnancy showed that 28.0% of the women were overweight and 4.1% were underweight. In the first and last interview during pregnancy, the rates of prevalence of excessive weight were 36.2 and 46.0%, respectively. The intervention proved to be effective in reducing the rate of weekly weight gain of pregnant women with excess weight (342.2 versus 420.2; p=0.015) and the prevalence of clinical complications (9.2 versus 24.85; p<0.001). CONCLUSIONS: dietary counseling was effective in decreasing the weight gain of pregnant women who were overweight and reducing clinical complications, such as gestational diabetes, preeclampsia, infant low weight, and prematurity in the Intervention Group.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2011;33(1):13-19
DOI 10.1590/S0100-72032011000100002
PURPOSE: to evaluate the impact of dietary counseling on controlling weight gain in pregnant women, who were served in a public health service facility. METHODS: the study was conducted at a known health unit located in the metropolitan region of the city of Porto Alegre, in Rio Grande do Sul, Brazil. Three hundred and fifteen pregnant women between the 10th and 29th week of gestation were randomized to Control and Intervention Groups. The Intervention Group received dietary counseling according to nutritional status, and pregnant women in the Control Group were instructed to follow the routine of the health service facility. Weight and height were measured, and the body mass index (BMI) was calculated. The pre-gestational nutritional status was determined according to the following BMI criteria: low weight (<18.5 kg/m²), eutrophy (18.5 to 24.9 kg/m²), overweight (25.0 to 29.9 kg/m²), and obesity (>30 kg/m²). The nutritional status during pregnancy was determined according to the BMI curve for gestational age adopted by the Health Ministry of Brazil. Data were analyzed by the relative risk and respective 95% confidence interval, and by the Student's t-test and χ2 test. Statistical significance was set at p<0.05. RESULTS: the assessment of nutritional status before pregnancy showed that 28.0% of the women were overweight and 4.1% were underweight. In the first and last interview during pregnancy, the rates of prevalence of excessive weight were 36.2 and 46.0%, respectively. The intervention proved to be effective in reducing the rate of weekly weight gain of pregnant women with excess weight (342.2 versus 420.2; p=0.015) and the prevalence of clinical complications (9.2 versus 24.85; p<0.001). CONCLUSIONS: dietary counseling was effective in decreasing the weight gain of pregnant women who were overweight and reducing clinical complications, such as gestational diabetes, preeclampsia, infant low weight, and prematurity in the Intervention Group.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2010;32(10):504-509
DOI 10.1590/S0100-72032010001000006
PURPOSE: to investigate the application of a multidisciplinary educational program to high-risk pregnancies due to endocrine diseases. METHODS: we retrospectively evaluated the application of a multidisciplinary educational program to 185 pregnant women with endocrine diseases referred to a maternity specialized in high-risk pregnancy. All pregnant women received multidisciplinary prenatal care from a team consisting of endocrinologists, obstetricians, sonographers, nurses and dietitians. Oral and written information about healthy habits, diabetes care, use of artificial sweeteners and exercise during pregnancy was given to all patients at the first endocrine consultation. An individualized nutrition plan was prepared on the occasion of the first visit to the nutritionist. In bi-weekly and monthly endocrine and nutritional visits, respectively, information about healthy changes in lifestyle was emphasized and the weight was recorded. Adherence to physical activity and nutritional counseling was self-reported. We compared the weekly weight before and after the intervention, fetal weight at birth, rate of macrosomia and low birth weight, and frequency of cesarean delivery among the four categories of body mass index (BMI) before pregnancy (<18.5, from 18.5 to 24.9, from 25 to 29.9 and >30 kg/m²). RESULTS: the main disease of referral was diabetes (84.9%). One third of the pregnant women (31.2%) were overweight and 42.5% were obese before pregnancy. Most women was first seen by the multidisciplinary team in the third trimester of pregnancy (64.1%) and 50.5% exceeded the recommended weight gain at first evaluation. Obese women exceeded the recommended weight gain in 62.5% of cases. After the intervention, the percentage of women who exceeded the recommended weekly weight gain was reduced in all categories of pre-pregnancy BMI, although a statistically significant difference was found only in the group with normal pre-pregnancy BMI (40.6 versus 21.9%, p = 0.03). At birth, average fetal weight was similar among the various BMI categories (p=0.277). Macrosomia was more frequent in women who were overweight and obese before pregnancy. Cesarean delivery was the most frequent route of delivery, regardless of pre-pregnancy BMI. CONCLUSIONS: in high-risk pregnancies due to endocrine disorders, a multidisciplinary educational approach limits excessive weekly weight gain despite the advanced gestational age.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2010;32(10):504-509
DOI 10.1590/S0100-72032010001000006
PURPOSE: to investigate the application of a multidisciplinary educational program to high-risk pregnancies due to endocrine diseases. METHODS: we retrospectively evaluated the application of a multidisciplinary educational program to 185 pregnant women with endocrine diseases referred to a maternity specialized in high-risk pregnancy. All pregnant women received multidisciplinary prenatal care from a team consisting of endocrinologists, obstetricians, sonographers, nurses and dietitians. Oral and written information about healthy habits, diabetes care, use of artificial sweeteners and exercise during pregnancy was given to all patients at the first endocrine consultation. An individualized nutrition plan was prepared on the occasion of the first visit to the nutritionist. In bi-weekly and monthly endocrine and nutritional visits, respectively, information about healthy changes in lifestyle was emphasized and the weight was recorded. Adherence to physical activity and nutritional counseling was self-reported. We compared the weekly weight before and after the intervention, fetal weight at birth, rate of macrosomia and low birth weight, and frequency of cesarean delivery among the four categories of body mass index (BMI) before pregnancy (<18.5, from 18.5 to 24.9, from 25 to 29.9 and >30 kg/m²). RESULTS: the main disease of referral was diabetes (84.9%). One third of the pregnant women (31.2%) were overweight and 42.5% were obese before pregnancy. Most women was first seen by the multidisciplinary team in the third trimester of pregnancy (64.1%) and 50.5% exceeded the recommended weight gain at first evaluation. Obese women exceeded the recommended weight gain in 62.5% of cases. After the intervention, the percentage of women who exceeded the recommended weekly weight gain was reduced in all categories of pre-pregnancy BMI, although a statistically significant difference was found only in the group with normal pre-pregnancy BMI (40.6 versus 21.9%, p = 0.03). At birth, average fetal weight was similar among the various BMI categories (p=0.277). Macrosomia was more frequent in women who were overweight and obese before pregnancy. Cesarean delivery was the most frequent route of delivery, regardless of pre-pregnancy BMI. CONCLUSIONS: in high-risk pregnancies due to endocrine disorders, a multidisciplinary educational approach limits excessive weekly weight gain despite the advanced gestational age.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2009;31(8):380-384
DOI 10.1590/S0100-72032009000800002
PURPOSE: to determine weight variation in women with different Body Mass Index (BMI) in use of trimestral injections of depot-medroxyprogesterone acetate (DMPA), and compare it to women users of a non-hormonal method. METHODS: retrospective study with the chart review of 226 DMPA users and 603 controls, users of DIU TCu380A. Women were distributed in categories, according to their initial BMI, as having normal weight (<25 kg/m²), overweight (25 to 29,9 kg/m²) and being obese (>30 kg/m²), and were followed-up for six years, with yearly measurements of weight and BMI. The statistic test ANOVA was used to measure the weight variation among the groups in each BMI category every year. RESULTS: the average age at the onset of the method employed was higher in the study group than in the controls, in all the BMI categories: 31.6±SD 7.1 X 27.4±SD 5.5 in the normal weight category (p<0.0001); 37.3±SD 6.8 X 29.2±SD 6.0 in the overweight category (p<0.0001); and 35.3±SD 6.4 X 29.7±SD 5.8 among obese women (p<0.0001). DMPA users showed weight increase as compared to the controls in the overweight category (p=0.0082); and the weight increase along the observation period was also higher among the DMPA users than among the controls, for the normal weight (p<0.0001) and overweight (p=0.0008) categories. In the obese group, there was no BMI variation between the groups, nor along the period during which they were using the method. CONCLUSIONS: there was no change in weight gain among DMPA users from the obese category. Prospective studies should be done with metabolic tests to establish the determining factors of weight gain in normal and overweight women.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2009;31(8):380-384
DOI 10.1590/S0100-72032009000800002
PURPOSE: to determine weight variation in women with different Body Mass Index (BMI) in use of trimestral injections of depot-medroxyprogesterone acetate (DMPA), and compare it to women users of a non-hormonal method. METHODS: retrospective study with the chart review of 226 DMPA users and 603 controls, users of DIU TCu380A. Women were distributed in categories, according to their initial BMI, as having normal weight (<25 kg/m²), overweight (25 to 29,9 kg/m²) and being obese (>30 kg/m²), and were followed-up for six years, with yearly measurements of weight and BMI. The statistic test ANOVA was used to measure the weight variation among the groups in each BMI category every year. RESULTS: the average age at the onset of the method employed was higher in the study group than in the controls, in all the BMI categories: 31.6±SD 7.1 X 27.4±SD 5.5 in the normal weight category (p<0.0001); 37.3±SD 6.8 X 29.2±SD 6.0 in the overweight category (p<0.0001); and 35.3±SD 6.4 X 29.7±SD 5.8 among obese women (p<0.0001). DMPA users showed weight increase as compared to the controls in the overweight category (p=0.0082); and the weight increase along the observation period was also higher among the DMPA users than among the controls, for the normal weight (p<0.0001) and overweight (p=0.0008) categories. In the obese group, there was no BMI variation between the groups, nor along the period during which they were using the method. CONCLUSIONS: there was no change in weight gain among DMPA users from the obese category. Prospective studies should be done with metabolic tests to establish the determining factors of weight gain in normal and overweight women.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2009;31(5):241-248
DOI 10.1590/S0100-72032009000500007
OBJECTIVE: to determine the frequency of macrosomia in babies born alive at a reference obstetric service, and its association with maternal risk factors. METHODS: a transversal descriptive study, including 551 women at puerperium, hospitalized at Instituto de Saúde Elpídio de Almeida, in Campina Grande (PB), Brazil, from August to October, 2007. Women, whose deliveries had been assisted at the institution, with babies born alive from one single gestation and approached in the first postpartum day, were included in the study. The nutritional and sociodemographic maternal characteristics were analyzed, and the ratio of macrosomia (birth weight >4.000 g) and its association with maternal variables were determined. Macrosomia was classified as symmetric or asymmetric according to Rohrer's index. Statistical analysis has been done through Epi-Info 3.5 software; the prevalence ratio (PR) and the confidence interval at 95% (CI 95%) were calculated. The research protocol was approved by the local Ethics Committee and all the participants signed the informed consent. RESULTS: the mean maternal age was 24.7 years old, and the mean gestational age was 38.6 weeks. Excessive gestational weight gain was observed in 21.3% of the pregnant women, and 2.1% of the participants had a diagnosis of diabetes mellitus (gestational or clinic). A ratio of 5.4% of macrosomic newborns was found, 60 were asymmetric. There was no significant association between macrosomia, mother's age and parity. There was an association between macrosomia and overweight/obesity in the pre-gestational period (PR=2.9; CI 95%=1.0-7.8) and at the last medical appointment (PR=4.9; CI 95%=1.9-12.5), excessive weight gain (PR = 6.9; CI 95%:2.8-16.9), clinical or gestational diabetes (PR = 8.9; CI 95%:4.1-19.4) and hypertension (PR=2.9; CI 95%=1.1-7.9). The factors that persisted significantly associated with macrosomia in the multivariate analysis were the excessive weight gain during the gestation (RR=6.9; CI 95%=2.9-16.9) and the presence of diabetes mellitus (RR=8.9, CI 95%=4.1-19.4). CONCLUSIONS: considering that excessive gestational weight gain and diabetes mellitus were the factors more strongly associated with macrosomia, it is important that precocious detection measurements and adequate follow-up of such conditions be taken, aiming at preventing unfavorable perinatal outcomes.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2009;31(5):241-248
DOI 10.1590/S0100-72032009000500007
OBJECTIVE: to determine the frequency of macrosomia in babies born alive at a reference obstetric service, and its association with maternal risk factors. METHODS: a transversal descriptive study, including 551 women at puerperium, hospitalized at Instituto de Saúde Elpídio de Almeida, in Campina Grande (PB), Brazil, from August to October, 2007. Women, whose deliveries had been assisted at the institution, with babies born alive from one single gestation and approached in the first postpartum day, were included in the study. The nutritional and sociodemographic maternal characteristics were analyzed, and the ratio of macrosomia (birth weight >4.000 g) and its association with maternal variables were determined. Macrosomia was classified as symmetric or asymmetric according to Rohrer's index. Statistical analysis has been done through Epi-Info 3.5 software; the prevalence ratio (PR) and the confidence interval at 95% (CI 95%) were calculated. The research protocol was approved by the local Ethics Committee and all the participants signed the informed consent. RESULTS: the mean maternal age was 24.7 years old, and the mean gestational age was 38.6 weeks. Excessive gestational weight gain was observed in 21.3% of the pregnant women, and 2.1% of the participants had a diagnosis of diabetes mellitus (gestational or clinic). A ratio of 5.4% of macrosomic newborns was found, 60 were asymmetric. There was no significant association between macrosomia, mother's age and parity. There was an association between macrosomia and overweight/obesity in the pre-gestational period (PR=2.9; CI 95%=1.0-7.8) and at the last medical appointment (PR=4.9; CI 95%=1.9-12.5), excessive weight gain (PR = 6.9; CI 95%:2.8-16.9), clinical or gestational diabetes (PR = 8.9; CI 95%:4.1-19.4) and hypertension (PR=2.9; CI 95%=1.1-7.9). The factors that persisted significantly associated with macrosomia in the multivariate analysis were the excessive weight gain during the gestation (RR=6.9; CI 95%=2.9-16.9) and the presence of diabetes mellitus (RR=8.9, CI 95%=4.1-19.4). CONCLUSIONS: considering that excessive gestational weight gain and diabetes mellitus were the factors more strongly associated with macrosomia, it is important that precocious detection measurements and adequate follow-up of such conditions be taken, aiming at preventing unfavorable perinatal outcomes.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2008;30(9):459-465
DOI 10.1590/S0100-72032008000900006
PURPOSE: to evaluate the effect of maternal, socioeconomic and obstetric variables, as well the presence of artery incisions in the 20th and 24th weeks on the fetal weight estimated at the end of pregnancy (36th week) in pregnant women attended by Programa Saúde da Família, in an inland town of the northeast of Brazil. METHODS: a longitudinal study including 137 pregnant women, who have been followed up every four weeks in order to assess clinical, socioeconomic and obstetric conditions, including their weight. The uterine arteries were evaluated by Doppler in the 20th and 24th weeks, the fetal weight and the amniotic fluid index (AFI), determined in the 36th week. The initial maternal nutritional state has been determined by the body mass index (BMI), the pregnant women being classified as low weight, eutrophic, over weight and obese. Weight gain during gestation has been evaluated, according to the initial nutritional state, being classified at the end of the second and third trimester as insufficient, adequate and excessive weight gain. Analysis of variance was performed to evaluate the association of the fetal weight in the 36th week with the predictor variables, adjusted by multiple linear regression. RESULTS: an association between the fetal weight estimated in the 36th week and the mother's age (p=0.02), mother's job (p=0.02), initial nutritional state (p=0.04), weight gain in the second trimester (p=0.01), presence of incisions in the uterine arteries (p=0.02), and AFI (p=0.007) has been observed. The main factors associated to the fetal weight estimated in the 36th week, after the multiple regression analysis were: BMI at the pregnancy onset, weight gain in the second trimester, AFI and tabagism. CONCLUSIONS: in the present study, the fetal weight is positively associated with the initial maternal nutritional state, the weight gain in the second trimester and the volume of amniotic fluid, and negatively, to tabagism.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2008;30(9):459-465
DOI 10.1590/S0100-72032008000900006
PURPOSE: to evaluate the effect of maternal, socioeconomic and obstetric variables, as well the presence of artery incisions in the 20th and 24th weeks on the fetal weight estimated at the end of pregnancy (36th week) in pregnant women attended by Programa Saúde da Família, in an inland town of the northeast of Brazil. METHODS: a longitudinal study including 137 pregnant women, who have been followed up every four weeks in order to assess clinical, socioeconomic and obstetric conditions, including their weight. The uterine arteries were evaluated by Doppler in the 20th and 24th weeks, the fetal weight and the amniotic fluid index (AFI), determined in the 36th week. The initial maternal nutritional state has been determined by the body mass index (BMI), the pregnant women being classified as low weight, eutrophic, over weight and obese. Weight gain during gestation has been evaluated, according to the initial nutritional state, being classified at the end of the second and third trimester as insufficient, adequate and excessive weight gain. Analysis of variance was performed to evaluate the association of the fetal weight in the 36th week with the predictor variables, adjusted by multiple linear regression. RESULTS: an association between the fetal weight estimated in the 36th week and the mother's age (p=0.02), mother's job (p=0.02), initial nutritional state (p=0.04), weight gain in the second trimester (p=0.01), presence of incisions in the uterine arteries (p=0.02), and AFI (p=0.007) has been observed. The main factors associated to the fetal weight estimated in the 36th week, after the multiple regression analysis were: BMI at the pregnancy onset, weight gain in the second trimester, AFI and tabagism. CONCLUSIONS: in the present study, the fetal weight is positively associated with the initial maternal nutritional state, the weight gain in the second trimester and the volume of amniotic fluid, and negatively, to tabagism.