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Search Results: 1 - 10 of 325305 matches for " Iná S.;Matijasevich "
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Epidemiologia do co-leito e do despertar noturno aos 12 meses de idade em uma coorte de nascimentos
Santos, Iná S.;Mota, Denise M.;Matijasevich, Alicia;
Jornal de Pediatria , 2008, DOI: 10.1590/S0021-75572008000200005
Abstract: objective: to investigate the prevalence and factors associated with co-sleeping and nighttime waking among the children of the pelotas 2004 cohort at 12 months of age. methods: all children born in the city of pelotas, rs, brazil during 2004 were enrolled on a longitudinal study. mothers were interviewed at delivery and once more at 12 months of age to obtain information on their sociodemographic and reproductive characteristics and on their children's sleep and the environment in which their children sleep. co-sleeping was defined as habitually sharing the bed with another person. multivariate analysis was performed using poisson regression. results: the prevalence of co-sleeping at 12 months was 45.8% (95%ci 44.2-47.3). co-sleeping was more common among mothers with low socioeconomic status, less education, younger mothers, mothers with more previous births and among children who wake at night. the prevalence of nighttime waking was 46.1% (95%ci 44.6-47.7). nighttime waking was more common among boys and among the offspring of mothers who had had a greater number of previous pregnancies and of mothers who had been employed while pregnant. conclusion: co-sleeping and nighttime waking are common among this study population, indicating a need to continue follow-up in order to observe how long these habits persist through childhood and to investigate their consequences for child development and behavior.
Does caffeine consumption during pregnancy increase the risk of fetal mortality? A literature review
Matijasevich, Alicia;Santos, Iná S.;Barros, Fernando C.;
Cadernos de Saúde Pública , 2005, DOI: 10.1590/S0102-311X2005000600014
Abstract: the aim of this study was to evaluate the available epidemiological evidence of the effect of caffeine consumption during pregnancy on fetal mortality. a systematic qualitative review of observational studies that referred to any source of exposure to caffeine from food in pregnancy and to fetal mortality as the outcome was conducted in the databases medline and lilacs. studies published between january 1966 and september 2004 were searched. the following descriptors were used: "caffeine", "coffee", "tea", "cola", and "cacao" to define the exposure and "fetal death", "stillbirth", "fetal demise", and "fetal loss" to define the outcome. the search strategy retrieved 32 publications, but only six met the inclusion criteria and three were included. one more article was found using "see related articles" feature in pubmed. a total of four publications were included in the review. the small number of publications addressing this subject, methodological limitations, inaccurate exposure assessment in all the studies, overall risks only marginally significant in most cases, and the possibility of publication bias preclude stating with certainty that caffeine consumption is actually associated with fetal death.
Epidemiología del Colecho y de Caminar de Noche a los 12 Meses en una Cohorte de Recién Nacidos Epidemilogy of Co-Sleeping and Nighttime Waking at 12 Months in a Birth Cohort
Revista chilena de pediatría , 2010,
Differentials and income-related inequalities in maternal depression during the first two years after childbirth: birth cohort studies from Brazil and the UK
Matijasevich Alicia,Golding Jean,Smith George,Santos Iná S
Clinical Practice and Epidemiology in Mental Health , 2009, DOI: 10.1186/1745-0179-5-12
Abstract: Background Depression is a prevalent health problem among women during the childbearing years. To obtain a more accurate global picture of maternal postnatal depression, studies that explore maternal depression with comparable measurements are needed. The aims of the study are: (1) to compare the prevalence of maternal depression in the first and second year postpartum between a UK and Brazilian birth cohort study; (2) to explore the extent to which variations in the rates were explained by maternal and infant characteristics, and (3) to investigate income-related inequalities in maternal depression after childbirth in both settings. Methods Population-based birth cohort studies were carried out in Avon, UK in 1991 (ALSPAC) and in the city of Pelotas, Brazil in 2004, where 13 798 and 4109 women were analysed, respectively. Self-completion questionnaires were used in the ALSPAC study while questionnaires completed by interviewers were used in the Pelotas cohort study. Three repeated measures of maternal depression were obtained using the Edinburgh Postnatal Depression Scale in the first and second year after delivery in each cohort. Unadjusted and adjusted analyses were carried out. The Relative index of Inequality was used for the analysis of income-relate inequalities so that results were comparable between cohorts. Results At both the second and third time assessments, the likelihood of being depressed was higher among women from the Pelotas cohort study. These differences were not completely explained by differences in maternal and infant characteristics. Income-related inequalities in maternal depression after childbirth were high and of similar magnitude in both cohort studies at the three time assessments. Conclusion The burden of maternal depression after childbirth varies between and within populations. Strategies to reduce income-related inequalities in maternal depression should be targeted to low-income women in both developed and developing countries.
Prognostic factors for low birthweight repetition in successive pregnancies: a cohort study
Iandora Krolow Timm Sclowitz, Iná S Santos, Marlos Rodrigues Domingues, Alicia Matijasevich, Aluísio J D Barros
BMC Pregnancy and Childbirth , 2013, DOI: 10.1186/1471-2393-13-20
Abstract: Data were collected by hospital-based interviews. Newborns were weighed and measured. Gestational age was defined according to the date of last menstrual period, ultra-sound scan before the 20th week of pregnancy or the Dubowitz method. Mothers who reported at least one LBW newborn in the two previous gestations were included. Prevalence ratios (PR) and 95% confidence intervals were estimated from Poisson Regression. All estimates were adjusted for parity.A total of 4558 births were identified in 2004, and 565 met inclusion criteria, out of which 86 (15.2%) repeated LBW in 2004. Among mothers with two LBW babies before 2004, 47.9% presented LBW recurrence. Belonging to the highest socio-economic stratum (PR 0.89; 0.01-0.46) and gaining ≥ 10 kg during pregnancy (PR 0.09; 0.01-0.77) were protective against LBW recurrence. Higher risk of LBW recurrence was observed among mothers with higher parity (≥3 previous deliveries; PR=1.93; 95% CI 1.23-3.02); who had given birth to a previous preterm baby (PR=4.01; 2.27-7.10); who delivered a female newborn in current gestation (PR=2.61; 1.45-4.69); and that had not received adequate antenatal care (PR=2.57; 1-37-4.81).Improved quality of antenatal care and adequate maternal weight gain during pregnancy may be feasible strategies to prevent LBW repetition in successive pregnancies.Low birthweight (LBW) defined as birth weight lower than 2500 grams is an important infant mortality and morbidity predictor [1,2]. Birthweight derives basically from two processes: length of pregnancy and fetal growth rate. Hence, LBW might be caused either by a short gestational period (preterm birth) or by intrauterine growth restriction (small for gestational age - SGA) and even by a combination of both factors. A meta-analysis about LBW released in 1987 [3] based on English and French literature, identified 43 possible risk factors to the occurrence of LBW. The same study pointed out the fact that some mothers repeatedly deliver babies of similar
Food intake profiles of children aged 12, 24 and 48 months from the 2004 Pelotas (Brazil) birth cohort: an exploratory analysis using principal components
Giovanna Gatica, Aluisio J D Barros, Samanta Madruga, Alicia Matijasevich, Ina S Santos
International Journal of Behavioral Nutrition and Physical Activity , 2012, DOI: 10.1186/1479-5868-9-43
Abstract: The Pelotas Birth Cohort Study (Brazil) recruited 4,231 liveborns, who were followed-up at ages 3, 12, 24 and 48 months. Food consumption data of children aged 12, 24 and 48 months was collected using a list of foods consumed during a 24-hour period prior to the interview. The food profiles were identified with the use of principal component analysis (PCA) for each age studied.Five components were identified at each age, four of them similar in all time points, namely: beverages, milks, staple, and snacks. A meat & vegetables component was identified at 12 and 24 months and a treats component at 48 months. The greatest nutritional differences were found among children from different socioeconomic levels. With regard to the milks component, higher breast milk intake compared to cow's milk was seen among poorer children (12- and 24-month old) and higher milk and chocolate powdered milk drink consumption was seen among more affluent children aged 48 months. Poorer children of less educated mothers showed higher adherence to the treats component (48 months). Regarding to the snack component, poorer children consumed more coffee, bread/cookies while more affluent children consumed proportionately more fruits, yogurt and soft drinks. Child care outside of the home was also a factor influencing food profiles more aligned with a healthier diet.The study results showed that very early in life children show food profiles that are strongly associated with social (maternal schooling, socioeconomic position and child care) and behavioral characteristics (breast-feeding duration, bottle-feeding and pacifier use).
Avalia??o longitudinal do controle esfincteriano em uma coorte de crian?as Brasileiras
Mota, Denise M.;Barros, Aluisio J. D.;Matijasevich, Alicia;Santos, Iná S.;
Jornal de Pediatria , 2010, DOI: 10.1590/S0021-75572010000500013
Abstract: objectives: to analyze sphincter control acquisition in a birth cohort. method: 4,231 children born in 2004 in pelotas, brazil, were included in a longitudinal study. during home visits at the ages of 12, 24 and 48 months, the mothers answered a questionnaire about sociodemographic questions and characteristics of their children's voiding and bowel habits, with special attention to toilet training. results: at 48 months, most children were off diapers during the day (98.5%) and by night (83%), with no difference between sexes. the average age for starting toilet training was 22 months, with earlier initiation in girls. the training was, on average, 3.2 months long, showing no difference between sexes. children with developmental delay had late voiding and bowel control; the higher the deviation from normality, the later the child was off diapers. medical advice was given to 15.9% of mothers. the training initiated before the age of 24 months was inversely correlated with an older age of sphincter control and longer training. premature and low birth weight children showed no significant difference in training time and age of acquisition of sphincter control. conclusions: at the age of 48 months, most children, including premature and low birth weight ones, acquired sphincter control regardless of external factors and sex. the beginning of training (before 24 months) did not anticipate sphincter control, but only prolonged the duration of training.
Nascimentos pré-termo no Brasil entre 1994 e 2005 conforme o Sistema de Informa??es sobre Nascidos Vivos (SINASC)
Silveira, Mariangela F.;Santos, Iná S.;Matijasevich, Alicia;Malta, Deborah Carvalho;Duarte, Elisabeth Carmen;
Cadernos de Saúde Pública , 2009, DOI: 10.1590/S0102-311X2009000600009
Abstract: monitoring preterm births is essential given their impact on infant morbidity and mortality and their economic and social costs. this article is based on data from the information system on live births (sinasc), implemented in 1990 and expanded gradually to cover 90% of all births in the country. preterm birth time trends are presented for brazil, regions, and capitals from 1994 to 2005. at the national level, there was an increase in the preterm birth rate, accompanied by a reduction in the proportion of missing information on gestational age. the southeast, south, and central-west regions followed the national trend, while the preterm birth rate fell in the north and northeast regions. we compared the findings from sinasc with those from population-based studies. the coverage and quality of sinasc has increased over time, but problems with the determination of gestational age still remain, leading to underestimation of preterm birth rates. due to the importance of sinasc for monitoring, further efforts are needed to improve the system's accuracy.
Diferenciais socioecon?micos na realiza??o de exame de urina no pré-natal
Silveira,Mariangela F; Barros,Aluísio J D; Santos,Iná S; Matijasevich,Alicia; Victora,Cesar G;
Revista de Saúde Pública , 2008, DOI: 10.1590/S0034-89102008000300001
Abstract: objective: urinalysis is an essential component of the prenatal routine, as urinary tract infections during pregnancy may lead to preterm delivery and neonatal morbidity. the objective of the study was to analyze factors associated to the solicitation of urinalysis during pregnancy. methods: during 2004, 4,163 women living in the urban area of pelotas (southern brazil) and who had received prenatal care were interviewed after delivery in the maternity hospitals of the city. prevalence of the non-performance of urinalysis was analyzed in relation to socioeconomic and demographic variables, as well as to characteristics of prenatal care. after a bivariate analysis, logistic regression was conducted to identify factors associated with the outcome, controlling for possible confusion factors at a 5% level of significance. results: the prevalence of not having had the test was 3%. the multivariate analysis showed that black skin color, poverty, low schooling, being unmarried and having fewer than six prenatal visits were associated with a higher probability of not carrying out the test. women who were black, poor and with low schooling presented a 10% probability of not being examined, compared to 0.4% for mothers who were white, wealthy and highly educated. conclusions: despite the fact that urinalysis is essential for preventing complications for the mother and newborn, 3% of the women were not screened. screening coverage may serve as an indicator to assess the quality of prenatal care. pregnant women who are black, poor, with low schooling and unmarried should be targeted in programs for improving the quality of care.
Neonatal mortality: description and effect of hospital of birth after risk adjustment
Barros,Aluísio J D; Matijasevich,Alicia; Santos,Iná S; Albernaz,Elaine P; Victora,Cesar G;
Revista de Saúde Pública , 2008,
Abstract: objective: to assess the effect of hospital of birth on neonatal mortality. methods: a birth cohort study was carried out in pelotas, southern brazil, in 2004. all hospital births were assessed by daily visits to all maternity hospitals and 4558 deliveries were included in the study. mothers were interviewed regarding potential risk factors. deaths were monitored through regular visits to hospitals, cemeteries and register offices. two independent pediatricians established the underlying cause of death based on information obtained from medical records and home visits to parents. logistic regression was used to estimate the effect of hospital of birth, controlling for confounders related to maternal and newborn characteristics, according to a conceptual model. results: neonatal mortality rate was 12.7? and it was highly influenced by birthweight, gestational age, and socioeconomic variables. immaturity was responsible for 65% of neonatal deaths, followed by congenital anomalies, infections and intrapartum asphyxia. adjusting for maternal characteristics, a three-fold increase in neonatal mortality was seen between similar complexity hospitals. the effect of hospital remained, though lower, after controlling for newborn characteristics. conclusions: neonatal mortality was high, mainly related to immaturity, and varied significantly across maternity hospitals. further investigations comparing delivery care practices across hospitals are needed to better understand nmr variation and to develop strategies for neonatal mortality reduction.
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