Factors Associated With Time to Pregnancy in Women With Axial Spondyloarthritis: A Registry‐Based Multicenter Study

Objective The present study was undertaken to time pregnancy (TTP) and factors associated with TTP in women axial spondyloarthritis (SpA) compared rheumatoid arthritis (RA). Methods We included 274 SpA 317 RA from the Norwegian nationwide registry RevNatus. For all women, we had retrospectively collected data on TTP, a subgroup also prospectively data. using Kaplan‐Meier plots log rank test. To identify used Cox proportional hazards regression. Results exceeded 12 months 21% of SpA. In followed prospectively, 32% that months. Longer older age, nulliparity, longer disease duration, hazard ratios 0.97 (95% confidence interval [95% CI] 0.94–1.00), 0.66 CI 0.50–0.88), 0.94 0.91–0.98), respectively. Disease activity, medication, self‐reported health‐related quality life were not TTP. found no statistically significant differences between regard Conclusion SpA, duration.