Table 2 |
|
| Characteristics of participant pregnant women of the Inma–Valencia study, 2004–2006 | |
| Characteristics | Subjects (%) |
| Maternal age (in years) | |
| ≤ 29 | 336 (45) |
| 30–34 | 285 (39) |
| ≥35 | 119 (16) |
| Educational level | |
| ≤Primary School | 249 (34) |
| Secondary School | 314 (42) |
| University | 177 (24) |
| Country of origin | |
| Spain | 651 (88) |
| Other countries | 89 (12) |
| Socioeconomic status categories | |
| I+II, upper | 118 (16) |
| III, middle | 178 (24) |
| IV+V, lower | 444 (60) |
| Pre-pregnancy body mass index (in kg/m2) | |
| <25 | 526 (71) |
| 25.0–29.9 | 139 (19) |
| ≥ 30 | 75 (10) |
| Smoking during pregnancy | |
| No | 439 (59) |
| First trimester only | 128 (17) |
| All pregnancy | 173 (24) |
| Alcohol intake | |
| None | 518 (70) |
| 0–1 g/d | 146 (20) |
| >1 g/d | 76 (10) |
| Gestational weight gain (missing=13) | |
| Normal | 261 (36) |
| Low | 179 (25) |
| High | 287 (39) |
| Parity | |
| 0 | 407 (55) |
| ≥1 | 333 (45) |
| Medical problems in previous pregnancies (missing n=6) | |
| Yes | 150 (20) |
| Use of supplement containing (any time in pregnancy): | |
| Folic acid (missing=32) | 675 (95) |
| Vitamin C | 413 (56) |
| Vitamin B12 | 645 (87) |
(N=740).
Vioque et al. Nutrition Journal 2013 12:26 doi:10.1186/1475-2891-12-26
