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. 2016 Aug 12;6(8):e011247. doi: 10.1136/bmjopen-2016-011247

Table 1.

Demographics and B12 and folate intakes of women of childbearing age (NDNS 2000/2001 cohort)

Female 19–39 years All subjects (n=299)
Age (years) 31.6±5.7
BMI (kg/m2) 25.4±5.2
Obesity, n (%) 46 (15.7)
Current smokers, n (%) 117 (39.1)
Regular alcohol drinkers, n (%) 267 (89.3)
Oral contraceptive use, n (%) 103 (34.4)
Ethnicity, n (%)
 White 283 (94.6)
 Afro-Caribbean 3 (1.0)
 Asian 8 (2.7)
 Other 5 (1.7)
Vegetarians, n (%) 26 (8.7)
B12 supplement users, n (%) 31 (10.4)
B12 intake, diet only (μg/day) 3.82 (2.75, 5.02)
B12 intake, diet+supplements (μg/day) 3.83 (2.82, 5.20)
Folic acid supplement users, n (%) 32 (10.7)
Folate intake with supplements (μg/day) 237 (177, 315)

Continuous variables are mean±SD or median (IQR).

Categorical variables are n (%).

BMI, body mass index; NDNS, National Diet and Nutrition Surveys.