Table III.
Crude and adjusted risk ratios (RRs) and CIs for infertility diagnoses as well as endometriosis and PCOS, according to asthma status.
| No asthma (n = 200 248) | Asthma (n = 6445) | Crude RR (95% CI) | Adjusted RRb (95% CI) | |
|---|---|---|---|---|
| Endometriosis | 393 (0.2%) | 20 (0.3%) | 1.48 (0.94–2.34) | 1.56 (0.99–2.46) |
| PCOS | 1035 (0.5%) | 50 (0.8%) | 1.17 (0.92–1.48) | 1.02 (0.80–1.30) |
| Infertility diagnosisa | 14 792 (7.4%) | 642 (10.0%) | 1.39 (1.29–1.49) | 1.29 (1.18–1.42) |
| Unspecified | 8413 (4.2%) | 349 (5.4%) | 1.33 (1.20–1.48) | 1.33 (1.20–1.48) |
| Unexplained after examination | 2155 (1.1%) | 118 (1.8%) | 1.21 (1.04–1.41) | 1.26 (1.08–1.47) |
| Myoma | 99 (0.0%) | 5 (0.1%) | 1.68 (0.81–3.48) | 1.74 (0.83–3.64) |
| Ovarian failure | 211 (0.1%) | 7 (0.1%) | 0.97 (0.55–1.71) | 0.98 (0.56–1.72) |
| Anovulation | 2176 (1.1%) | 88 (1.4%) | 1.37 (1.15–1.64) | 1.33 (1.11–1.58) |
| Tubal factor infertility | 844 (0.4%) | 39 (0.6%) | 1.42 (1.03–1.96) | 1.49 (1.08–2.05) |
a
Strict clinical infertility diagnosis, excluding endometriosis and polycystic ovary syndrome (PCOS).
b
Adjusted for obesity, approximated age of reproductive start and calendar year.