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| Variables | Healthy women (control group) | Pregnant women (study group) | Pb |
| Number of eyes /patients | 72/36 | 58/29 | |
| Age (a), mean±SD (range) | 28.00±5.27, (19-40) | 27.41±5.48, (18-38) | 0.536 |
| Gestational age (wk), mean±SD (range) | - | 31.97±3.77, (28-39) |
SD: Standart deviation. bIndependent Student's t-test
