Table II.
Crude and adjusted risk ratios (RRs) and CIs of reproductive outcomes among women with any reproductive healthcare visit.
| No asthma |
Asthma |
Active asthma
a
|
|||||
|---|---|---|---|---|---|---|---|
| No asthma (n = 200 248) | Asthma (n = 6445) | Crude RR (95% CI) | Adjusted RRb (95% CI) | Active asthma (n = 3560) | Crude RR (95% CI) | Adjusted RRb (95% CI) | |
| Childbirth | 164 979 (82.4%) | 5329 (82.7%) | 1.03 (1.02–1.04) | 1.02 (1.01–1.03) | 2892 (81.2%) | 1.00 (0.99–1.02) | 1.01 (0.99–1.02) |
| Infertility (diagnosis or treatment)c | 16 220 (8.1%) | 712 (11.0%) | 1.26 (1.18–1.34) | 1.29 (1.21–1.39) | 372 (10.4%) | 1.17 (1.07–1.28) | 1.24 (1.13–1.37) |
| Childbirth after infertilityd | 7599 (3.8%) | 356 (5.5%) | 1.08 (1.02–1.14) | 1.05 (0.99–1.11) | 178 (5.0%) | 1.05 (0.97–1.14) | 1.03 (0.95–1.12) |
| Pregnancy losse | 25 119 (12.5%) | 1059 (16.4%) | 1.17 (1.11–1.22) | 1.21 (1.15–1.28) | 601 (16.9%) | 1.22 (1.15–1.31) | 1.25 (1.17–1.33) |
| Induced abortion | 35 815 (17.9%) | 1471 (22.8%) | 1.14 (1.11–1.18) | 1.15 (1.11–1.20) | 847 (23.8%) | 1.23 (1.17–1.30) | 1.20 (1.14–1.26) |
a
Defined as healthcare visit with asthma as main diagnosis <3 years before reproductive start-age.
b
Adjusted for obesity, endometriosis, polycystic ovary syndrome, approximated age of reproductive start and calendar year.
c
Includes women with healthcare visits for infertility (endometriosis and polycystic ovary syndrome excluded) or medically assisted reproduction without valid diagnosis.
d
Compared only to women with a healthcare visit for infertility or medically assisted reproduction, total n = 16 932. Total n = 16 592, when only active asthma included.
e
That is miscarriage, ectopic pregnancy or molar pregnancy.