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Patterns of leisure-time physical activity across pregnancy and adverse pregnancy outcomes.

ABSTRACT: BACKGROUND:Although leisure-time physical activity (PA) contributes to overall health, including pregnancy health, patterns across pregnancy have not been related to birth outcomes. We hypothesized that women with sustained low leisure-time PA would have excess risk of adverse pregnancy outcomes, and that changing patterns across pregnancy (high to low and low to high) may also be related to risk of adverse pregnancy outcomes. METHODS:Nulliparous women (n?=?10,038) were enrolled at 8 centers early in pregnancy (mean gestational age in weeks [SD]?=?12.05 [1.51]. Frequency, duration, and intensity (metabolic equivalents) of up to three leisure activities reported in the first, second and third trimesters were analyzed. Growth mixture modeling was used to identify leisure-time PA patterns across pregnancy. Adverse pregnancy outcomes (preterm birth, [PTB, overall and spontaneous], hypertensive disorders of pregnancy [HDP], gestational diabetes [GDM] and small-for-gestational-age births [SGA]) were assessed via chart abstraction. RESULTS:Five patterns of leisure-time PA across pregnancy were identified: High (35%), low (18%), late decreasing (24%), early decreasing (10%), and early increasing (13%). Women with sustained low leisure-time PA were younger and more likely to be black or Hispanic, obese, or to have smoked prior to pregnancy. Women with low vs. high leisure-time PA patterns had higher rates of PTB (10.4 vs. 7.5), HDP (13.9 vs. 11.4), and GDM (5.7 vs. 3.1, all p?

SUBMITTER: Catov JM

PROVIDER: S-EPMC6042402 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature

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Patterns of leisure-time physical activity across pregnancy and adverse pregnancy outcomes.

Catov Janet M JM Parker Corette B CB Gibbs Bethany Barone BB Bann Carla M CM Carper Benjamin B Silver Robert M RM Simhan Hyagriv N HN Parry Samuel S Chung Judith H JH Haas David M DM Wapner Ronald J RJ Saade George R GR Mercer Brian M BM Bairey-Merz C Noel CN Greenland Philip P Ehrenthal Deborah B DB Barnes Shannon E SE Shanks Anthony L AL Reddy Uma M UM Grobman William A WA

The international journal of behavioral nutrition and physical activity 20180711 1

<h4>Background</h4>Although leisure-time physical activity (PA) contributes to overall health, including pregnancy health, patterns across pregnancy have not been related to birth outcomes. We hypothesized that women with sustained low leisure-time PA would have excess risk of adverse pregnancy outcomes, and that changing patterns across pregnancy (high to low and low to high) may also be related to risk of adverse pregnancy outcomes.<h4>Methods</h4>Nulliparous women (n = 10,038) were enrolled a ...[more]

PMID: 29996930

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Project description:BACKGROUND: Physical inactivity is a major public health problem associated with increased mortality risk. It is, however, poorly understood whether vigorous physical activity is more beneficial for reducing mortality risk than activities of lower intensity. The aim of this study was to examine associations of the intensity and volume of leisure-time physical activity with all-cause mortality among middle-aged women and men while considering sociodemographic and health related factors as covariates. METHODS: Questionnaire survey data collected in 2000-02 among 40-60-year-old employees of the City of Helsinki (N = 8960) were linked with register data on mortality (74% gave permission to the linkage) providing a mean follow-up time of 12-years. The analysis included 6429 respondents (79% women). The participants were classified into three groups according to intensity of physical activity: low moderate, high moderate and vigorous. The volume of physical activity was classified into three groups according to tertiles. Cox regression analysis was used to calculate hazard ratios (HR) and 95% confidence intervals (CIs) for all-cause mortality. RESULTS: During the follow up 205 participants died. Leisure-time physical activity was associated with reduced risk of mortality. After adjusting for covariates the vigorous group (HR = 0.54, 95% CI 0.34-0.86) showed a reduced risk of mortality compared with the low moderate group whereas for the high moderate group the reductions in mortality risk (HR = 0.72, 95% CI 0.48-1.08) were less clear. Adjusting for the volume of physical activity did not affect the point estimates. Higher volume of leisure-time physical activity was also associated with reduced mortality risk; however, adjusting for the covariates and the intensity of physical activity explained the differences. CONCLUSIONS: For healthy middle-aged women and men who engage in some physical activity vigorous exercise may provide further health benefits preventing premature deaths.

Dataset Information

Patterns of leisure-time physical activity across pregnancy and adverse pregnancy outcomes.

Publications

Patterns of leisure-time physical activity across pregnancy and adverse pregnancy outcomes.

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