Table 1.
Comparison between pregnant women (case) and nonpregnant women (control) groups
| Variable total (n=1484) | Mean±SD/n (%) | P | |
|---|---|---|---|
| Cases (n=742) | Controls (n=742) | ||
| Age (years) | 29.4±5.6 | 29.2±5.7 | 0.743 |
| <20 | 16 (2.1) | 21 (2.8) | |
| 20-35 | 605 (81.5) | 607 (81.8) | |
| >35 | 121 (16.3) | 114 (15.4) | |
| BMI (Kg/m2) | 29.8±6.1 | 26.3±10.2 | <0.001 |
| Comorbidities | |||
| Diabetes mellitus | 104 (14) | 21 (2.8) | <0.001 |
| Vitamin D deficiency | 113 (15.2) | 444 (59.9) | <0.001 |
| Anemia (Hb <110 g/L) | 243 (32.7) | 186 (25.1) | <0.001 |
| RLS diagnosis | 223 (30) | 197 (26.5) | 0.134 |
| RLS severity | |||
| Mild | 41 (18) | 61 (31) | <0.001 |
| Moderate | 127 (57) | 107 (54) | |
| Severe | 53 (24) | 23 (12) | |
| Very severe | 2 (1) | 6 (3) | |
| RLS severity | |||
| Severe/very severe RLS | 55 (25) | 29 (15) | <0.001 |
| Mild/moderate RLS | 168 (75) | 168 (85) | |
SD=Standard deviation, BMI=Body mass index, Hb=Hemoglobin, RLS=Restless legs syndrome