Table 2

Analysis of covariance: effect of dichotomised age at diagnosis of IA (based on our study groups) on total number of children per man and considering the total number of children of men diagnosed ≥41 years as our reference group

Crude (n=615)Adjusted* (n=609)
B (95% CI)P valueB (95% CI)P value
31–40 years−0.398 (−0.624 to −0.171)0.001−0.207 (−0.455 to 0.040)0.101
≤30 years−0.517 (−0.744 to −0.291)0.000−0.406 (−0.660 to −0.152)0.002
  • *Adjusted for confounders (age at inclusion in the study, education level, cardiovascular disease, diagnosis of infertility in partner and diagnosis of RA, JIA and SpA).

  • IA, inflammatory arthritis; JIA, juvenile idiopathic arthritis; RA, rheumatoid arthritis; SpA, spondyloarthritis.