Table 6 Odds of Clinical Pregnancy per cycle according to NMSI and Age Category
From: Number of motile spermatozoa inseminated and pregnancy outcomes in intrauterine insemination
Unadjusted Models | Model 1 Age < 35 (N = 1208 cycles from 455 couples) | Model 2 ≥35 (N = 852 cycles from 315 couples) | ||||
NMSI Category | N | OR (95%CI) | P-Value | N | OR (95%CI) | P-Value |
0–4 | 227 | 0.48 (0.30–0.77) | 0.002 | 136 | 0.84 (0.46–1.54) | 0.57 |
5–9 | 142 | 0.65 (0.38–1.11) | 0.12 | 103 | 0.78 (0.39–1.54) | 0.47 |
≥10 | 839 | Ref | – | 613 | Ref | – |
Adjusted Models | < 35 (N = 1053 cycles from 389 couples) | ≥35 (N = 742 cycles from 269 couples) | ||||
NMSI Category | OR (95%CI) | P-Value | OR (95%CI) | P-Value | ||
0–4 | 204 | 0.49 (0.29–0.83) | 0.007 | 119 | 1.55 (0.72–3.31) | 0.26 |
5–9 | 127 | 0.66 (0.37–1.18) | 0.17 | 94 | 1.04 (0.48–2.27) | 0.92 |
≥10 | 722 | Ref | – | 529 | Ref | – |
Duration of Infertility (Months) | ||||||
< 12 | 76 | Ref | – | 97 | Ref | – |
12–23 | 501 | 0.82 (0.42–1.62) | 0.57 | 354 | 0.91 (0.44–1.91) | 0.81 |
24–35 | 268 | 0.98 (0.48–2.01) | 0.96 | 138 | 0.91 (0.40–2.09) | 0.82 |
≥ 36 | 208 | 0.51 (0.23–1.12) | 0.09 | 153 | 0.70 (0.31, 1.59) | 0.39 |
Cause of Infertility | ||||||
Unexplained | 427 | 0.93 (0.62–1.38) | 0.70 | 336 | 0.97 (0.60–1.65) | 0.91 |
Male & Female Factor | 51 | 0.53 (0.20–1.41) | 0.21 | 65 | 0.45 (0.09–2.35) | 0.35 |
Male Factor | 218 | 0.93 (0.58–1.50) | 0.77 | 138 | 0.21 (0.08–0.53) | 0.001 |
Female Factor | 357 | Ref | – | 203 | Ref | – |