Table 3 Baseline characteristics by leisure-time physical activity trajectory class across nuMoM2b study visits
From: Patterns of leisure-time physical activity across pregnancy and adverse pregnancy outcomes
Baseline characteristics | Leisure-time physical activity trajectory class | p-value1/ | ||||
|---|---|---|---|---|---|---|
High | Early decreasing | Early increasing | Late decreasing | Low | ||
(N = 3483) | (N = 1017) | (N = 1338) | (N = 2404) | (N = 1780) | ||
Maternal age, in years | ||||||
 Mean (standard deviation) | 28.8 (5.4) | 25.5 (5.5) | 25.8 (5.8) | 26.9 (5.4) | 25.2 (5.6) | <.0001 |
 Category: n (%) |  |  |  |  |  | <.0001 |
  13–21 | 427 (12.3) | 301 (29.6) | 372 (27.8) | 478 (19.9) | 551 (31.0) | |
  22–35 | 2735 (78.6) | 682 (67.1) | 886 (66.2) | 1783 (74.2) | 1131 (63.5) | |
   > 35 | 318 (9.1) | 34 (3.3) | 80 (6.0) | 143 (5.9) | 98 (5.5) | |
Maternal race: n (%) | Â | Â | Â | Â | Â | <.0001 |
 White Non-Hispanic | 2491 (71.6) | 536 (52.7) | 682 (51.0) | 1540 (64.1) | 740 (41.6) | |
  Black Non-Hispanic | 290 (8.3) | 180 (17.7) | 256 (19.1) | 330 (13.7) | 362 (20.3) | |
 Hispanic | 374 (10.7) | 200 (19.7) | 258 (19.3) | 325 (13.5) | 534 (30.0) | |
 Asian | 151 (4.3) | 35 (3.4) | 62 (4.6) | 95 (4.0) | 64 (3.6) | |
 Other | 174 (5.0) | 66 (6.5) | 80 (6.0) | 114 (4.7) | 80 (4.5) | |
Early Pregnancy BMI, in kg/m2 | ||||||
 Mean (standard deviation) | 25.2 (5.3) | 27.4 (6.9) | 27.0 (6.8) | 26.9 (6.8) | 26.8 (6.4) | <.0001 |
 Category: n (%) |  |  |  |  |  | <.0001 |
   < 25 | 2112 (61.7) | 442 (44.2) | 663 (50.3) | 1180 (49.9) | 797 (46.8) | |
  25 to < 30 | 803 (23.4) | 282 (28.2) | 293 (22.2) | 586 (24.8) | 480 (28.2) | |
   ≥ 30 | 510 (14.9) | 275 (27.5) | 361 (27.4) | 601 (25.4) | 426 (25.0) | |
Nausea, vomiting, retching in 12Â h prior V1 interview: n (%) | 1704 (49.0) | 592 (58.2) | 789 (59.0) | 1317 (54.8) | 1016 (57.1) | <.0001 |
Smoked during 3Â months prior to pregnancy: n (%) | 487 (14.0) | 223 (21.9) | 288 (21.6) | 392 (16.3) | 392 (22.1) | <.0001 |
Chronic hypertension: n (%) | 43 (1.3) | 36 (3.7) | 36 (2.8) | 84 (3.7) | 43 (2.6) | <.0001 |
Pre-gestational diabetes: n (%) | 30 (0.9) | 25 (2.5) | 29 (2.2) | 51 (2.2) | 16 (1.0) | <.0001 |