Table 1 Participant characteristics and comparison of characteristics between women recruited at the Adelaide and Auckland SCOPE centres
From: Vitamin D levels in an Australian and New Zealand cohort and the association with pregnancy outcome
All women (n = 2800) | Adelaide (n = 1156) | Auckland (n = 1644) | P value* | |
|---|---|---|---|---|
Age yrs, mean (SD) | 28 (6) | 23.73 (5.11) | 30.44 (4.82) | <0.0001 |
BMI kg/m2, mean (SD) | 25.8 (5.44) | 27.04 (6.56) | 24.88 (4.26) | <0.0001 |
Ethnicity | <0.0001 | |||
Caucasian | 2449 (87) | 1060 (92) | 1389 (84) | |
Non Caucasian | 351 (13) | 96 (8) | 255 (16) | |
Smoking status, n (%) | <0.0001 | |||
No | 2152 (77) | 704 (61) | 1448 (88) | |
Quit during pregnancy | 306 (11) | 175 (15) | 131 (8) | |
Smoking | 342 (12) | 277 (24) | 65 (4) | |
Alcohol Consumption, n (%) | <0.0001 | |||
No | 1480 (53) | 708 (61) | 772 (47) | |
Stopped during pregnancy | 1185 (42) | 397 (34) | 788 (48) | |
Consuming alcohol | 135 (5) | 51 (4) | 84 (5) | |
Fruit Intake, n (%) | <0.0001 | |||
≥1x per day | 2032 (73) | 586 (51) | 1446 (88) | |
3-6x per week | 405 (14) | 272 (24) | 133 (8) | |
1-2x per week | 223 (8) | 181 (16) | 42 (3) | |
1-3x per month or less | 140 (5) | 117 (10) | 23 (1) | |
Recreational Walking | <0.0001 | |||
Never | 428 (15) | 265 (23) | 163 (10) | |
1-3 times/week | 1773 (63) | 668 (58) | 1105 (68) | |
≥4 times/week | 590 (22) | 221 (19) | 369 (23) | |
Time watching TV | <0.0001 | |||
<5 hours per day | 2404 (86) | 901 (78) | 1503 (92) | |
≥5 hours per day | 387 (14) | 253 (22) | 134 (8) | |
Season serum was sampled | 0.3213 | |||
Summer | 636 (23) | 278 (24) | 358 (22) | |
Autumn | 705 (25) | 273 (24) | 432 (26) | |
Winter | 727 (26) | 300 (26) | 427 (26) | |
Spring | 732 (26) | 305 (26) | 427 (26) | |
Serum 25(OH)D nmol/L, mean (SD) | 68.09 (27.14) | 60.06 (23.68) | 73.74 (27.99) | <0.0001 |
Vitamin D Status | <0.0001 | |||
<25 nmol/L | 99 (4) | 48 (4) | 51 (3) | |
25-50 nmol/L | 673 (24) | 375 (32) | 298 (18) | |
50-75 nmol/L | 928 (33) | 422 (37) | 506 (31) | |
>75 nmol/L | 1098 (39) | 311 (27) | 787 (48) |