Table 2.
Selected characteristics of pregnant women according to hypothyroxinemia condition
| Characteristics | All women | Hypothyroxinemia | p valuea | |
|---|---|---|---|---|
| N = 381 | Yes n = 207 |
No n = 174 |
||
| Maternal Age (years) | ||||
| Mean ± SD | 24.20 ± 5.7 | 24.83 ± 5.98 | 23.45 ± 5.26 | 0.02 |
| Marital status n(%) | ||||
| Unitedb | 338 (88.71) | 188 (90.82) | 150 (86.21) | 0.16 |
| No united | 43 (11.29) | 19 (9.18) | 24 (13.79) | |
| Education n(%) | ||||
| Elementary school | 76 (19.95) | 53 (25.60) | 23 (13.22) | < 0.01 |
| Middle school | 189 (49.61) | 105 (50.72) | 84 (48.28) | |
| > Middle school | 116 (30.45) | 49 (23.67) | 67 (38.51) | |
| Gestational age (weeks) | ||||
| Mean ± SD | 10.20 (2.80) | 10.36 ± 2.83 | 9.99 ± 2.74 | 0.20 |
| Body Mass Indexc | ||||
| Mean ± SD | 24.50 (4.40) | 24.85 ± 4.46 | 24.07 ± 4.30 | 0.08 |
| Coffee intake n(%) | ||||
| Yes | 293 (76.90) | 153 (73.91) | 140 (80.86) | 0.13 |
| No | 88 (23.10) | 54 (26.09) | 34 (19.54 | |
| Parity n(%) | ||||
| Primiparous | 157 (41.21) | 79 (38.16) | 78 (44.83) | 0.19 |
| Multiparous | 224 (58.79) | 128 (61.84) | 96 (55.17) | |
| Smoking n(%) | ||||
| Yes | 123 (32.28) | 57 (27.54) | 66 (37.93) | 0.03 |
| No | 258 (67.72) | 150 (72.46) | 108 (62.07) | |
| Alcohol intake n(%) | ||||
| Yes | 253 (66.40) | 137 (66.18) | 116 (66.67) | 0.92 |
| No | 128 (33.60) | 70 (33.82) | 58 (33.33) | |
| Iodine supplementationd n(%) | ||||
| Yes | 43 (11.91) | 24 (12.18) | 19 (11.59) | 0.86 |
| No | 318 (88.09) | 173 (87.82) | 145 (88.41) | |
| Sampling season n(%) | ||||
| Summer | 181 (47.51) | 108 (52.17) | 73 (41.95) | 0.05 |
| Winter | 200 (52.49) | 99 (47.83) | 101 (58.05) | |
aχ2 or Student t-test, except for BMI, where Mann Whitney test was used
bUnited includes married and women in free union
cAt time of interview
dFrom 3 months before pregnancy until time of interview