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.

Vioque et al. Nutrition Journal 2013 12:26   doi:10.1186/1475-2891-12-26

Open Data