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Table 1 Maternal characteristics in the intervention and control groups, PAMELA study

From: A randomized controlled trial of exercise during pregnancy on maternal and neonatal outcomes: results from the PAMELA study

  Intervention (n = 213) Control (n = 426) p
Baseline measures (16-20 weeks gestation)
 Maternal age (years) 27.2 ± 5.3 27.1 ± 5.7 0.83
 Gestational age (weeks) 16.4 ± 1.6 16.4 ± 1.5 0.74
 Weight (kg) 69.1 ± 12.8 69.4 ± 13.0 0.77
 Height (cm) 161 ± 6.6 161 ± 6.0 0.29
 Blood systolic pressure (mmHg) 111.6 ± 10.2 112.1 ± 10.4 0.58
 Blood diastolic pressure (mmHg) 68.8 ± 7.9 69.3 ± 7.3 0.16
 Proteinuria (mg/DL)ǂ 12.2 ± 5.9 12.4 ± 6.7 0.67
 Fasting glycemia (mg/DL) 82.6 ± 8.5 82.4 ± 7.9 0.80
Prenatal care measures (up to 20 weeks gestation) Intervention (n = 199) Control (n = 399) p
 Schooling (years)b 12.4 ± 3.7 11.9 ± 3.5 0.09
 Pre-pregnancy body mass index (kg/m2)a 25.1 ± 3.9 25.2 ± 4.1 0.94
 Pre-pregnancy body mass index (≥ 25 kg/m2)a 81 (44.3) 169 (46.1) 0.69
Nulliparity
 Yes 124 (64.9) 251 (66.1) 0.73
Skin colorb
 White 147 (73.9) 308 (77.6) 0.12
Marital Status
 Living with a partner 170 (85.4) 345 (86.5) 0.73
Smoking during pregnancyc
 Yes 13 (6.9) 16 (4.4) 0.21
Employment during pregnancy
 Yes 109 (58.3) 239 (62.3) 0.33
  1. Data are expressed as means with standard deviation (SD) and n. (%). p > .05
  2. No statistically significant differences between groups. Group-mean differences according covariates were analyzed by the Student’s t-test (mean, SD) or chi-squared test (n, %). ǂ1 missing;a48 missing; b1 missing; c 42 missing; c 29 missing