Table I.
Baseline characteristics in vitamin D treated and control group
| Variables | Vitamin D treated group (n=51) | Control group (n=55) | p-value | |||
|---|---|---|---|---|---|---|
| Age (years) | 28.45 ± 3.74 | 29.56 ± 4.68 | 0.18 | |||
| BMI (kg/m2) | 26.87 ± 1.77 | 26.29 ± 1.67 | 0.08 | |||
| Type of infertility | ||||||
| Primary | 46 (90.20) | 49 (89.1) | 1.00 | |||
| Secondary | 5 (9.80) | 6 (10.90) | ||||
| Etiology of infertility | ||||||
| Ovulatory | 19 (37.30) | 11 (20.00) | 0.30 | |||
| Tubal | 5 (9.80) | 4 (7.3 ) | ||||
| Male | 9 (17.60) | 17 (30.90) | ||||
| Mixed | 14 (27.50) | 18 (32.70) | ||||
| Unexplained | 4 (7.8) | 4 ( 7.3) | ||||
| Type of previous stimulation | ||||||
| Antagonist protocol | 43 (84.30) | 49 (89.10) | 0.57 | |||
| Agonist protocol | 8 (15.70) | 6(10.90) | ||||
| Cause of embryo freezing | ||||||
| Risk of OHSS | 22 (43.10) | 29 (45.50) | 0.84 | |||
| Surplus embryos | 29 (56.90) | 30 (54.5) | ||||
| Pretreatment serum vitamin D level, (ng/ml)x | 15.81 ± 5.94 | 14.2 ± 6.33 | 0.18 | |||
BMI: body mass index
OHSS: Ovarian hyperstimulation syndrom
Continuous data presented as mean±SD with p-values obtained from Independent- Samples t test; Categorical data presented as n (%) with p-value Obtained from Chi-Square test.
x
Pretreatment vitamin D: Serum level of 25(OH) vitamin D before treatment