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Table 5 Bivariate associations between self- or provider-initiated conversations on physical activity and nutrition and corresponding behaviors

From: Provider advice on physical activity and nutrition in twin pregnancies: a cross-sectional electronic survey

MVPA, median minutes/day ± IQRaSelf-initiated Conversation on Physical Activity
N = 84
Provider-initiated Conversation on Physical Activity
N = 99
p-valueb
 Before pregnancy245.0 ± 250.0175.0 ± 220.00.003
 First trimester142.5 ± 257.530.0 ± 130.0< 0.001
 Second trimester75.0 ± 200.00.0 ± 102.50.010
 Third trimester0.0 ± 75.00.0 ± 30.00.259
 Averages across trimesters61.7 ± 183.322.5 ± 88.30.002
Diet quality, mean score ± SDcSelf-initiated Conversation on Nutrition
N = 36
Provider-initiated Conversation on Nutrition
N = 114
p-valueb
 Before pregnancy3.4 ± 0.93.3 ± 0.90.456
 First trimester3.1 ± 0.83.3 ± 0.90.273
 Second trimester3.2 ± 0.83.5 ± 0.80.021
 Third trimester3.2 ± 1.03.5 ± 0.90.044
 Averages across trimesters3.1 ± 0.73.4 ± 0.70.025
  1. Abbreviations: MVPA moderate to vigorous physical activity, IQR interquartile range, SD standard deviation
  2. aMVPA minutes/day assessed using the 2009 Behavioral Risk Factor Surveillance System physical activity questionnaire
  3. bP-value testing for differences in physical activity and diet quality by women’s report of who initiated these conversations using Wilcoxon-Mann-Whitney tests
  4. cDiet quality score range 1–5, with higher scores indicating better diet quality