Table 1 Baseline characteristics of pregnant women visiting comprehensive health service centers in Tabriz (n = 180)
Variable | Number (%) |
|---|---|
Age (Years) | |
  < 18 | 8 (4.4) |
 18–35 | 155 (86.1) |
 35< | 17 (9.4) |
Education | |
 Less than high school | 27 (15.0) |
 High school | 93 (51.7) |
 Academic degree | 60 (33.3) |
Job | |
 Unemployed | 153 (85.0) |
 Employed | 26 (14.4) |
 Othersa | 1 (0.6) |
Parity status | |
 Nulliparous | 111 (61.7) |
 1 | 56 (31.1) |
 2 or more | 13 (7.2) |
Gestational trimester | |
 1 | 24 (13.3) |
 2 | 54 (30.0) |
 3 | 102 (56.7) |
Residential place | |
 Apartment | 133 (73.9) |
 House | 47 (26.1) |
Intake of vitamin D supplement | |
 Yes | 156 (86.7) |
 No | 23 (12.8) |
 I don’t know | 1 (0.6) |