Table 2 Outcomes for women undergoing assisted reproductive treatment
From: Vitamin D and assisted reproductive treatment outcome: a prospective cohort study
|  | Deficienta < 50 nmol/L n/N % (95% CI) | Insufficienta (50-75 nmol/L) n/N % (95% CI) | Repletea (> 75 nmol/L) n/N % (95% CI) | p-value | |
|---|---|---|---|---|---|
Live birth | Crude rates | 57/246 23.2 (18.0–28.4) | 38/141 27.0 (19.6–34.3) | 29/77 37.7 (26.9–48.5) | 0.04 |
Adjusted ratesb | 24.3 (18.7–29.9) | 27.1 (19.9–34.2) | 34.4 (23.9–44.9) | 0.25 | |
Positive pregnancy test | Crude rates | 80/246 32.5 (26.7–38.4) | 55/141 39.0 (30.9–47.1) | 37/77 48.1 (36.9–59.2) | 0.04 |
Adjusted ratesb | 34.1 (27.9–40.4) | 36.7 (28.7–44.8) | 43.8 (32.5–55.2) | 0.35 | |
Clinical pregnancy | Crude rates | 64/246 26.0 (20.6–31.4) | 45/141 31.9 (24.2–39.6) | 32/77 41.6 (30.5–52.6) | 0.03 |
Adjusted ratesb | 27.1 (21.2–33.0) | 32.0 (24.3–39.7) | 38.7 (27.7–49.7) | 0.19 | |
Biochemical pregnancy loss | Crude rates | 16/80 20.0 (11.2–28.8) | 10/55 18.2 (8.0–28.4) | 5/37 13.5 (2.5–24.5) | 0.70 |
Adjusted ratesb | 21.6 (11.6–31.5) | 16.1 (5.7–26-5) | 14.2 (2.2–26.1) | 0.64 | |
Clinical pregnancy loss | Crude rates | 7/64 10.9 (3.3–18.6) | 7/45 15.6 (5.0–26.1) | 3/32 9.4 (0.1–19.5) | 0.67 |
Adjusted ratesb | 12.2 (4.2–20.2) | 22.2 (7.7–36.7) | 16.3 (1.8–30.9) | 0.55 | |