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Table 1 Baseline characteristics and comparing the OR of a male vs female case

From: Increasing prevalence of familial recurrence of multiple sclerosis in Iran: a population based study of Tehran registry 1999–2015

Variables Female N (%)
12,403 (75.4)
Male N (%)
4044 (24.6)
Total N (%)
16,447 (100)
P value Crude OR
(95% CI)
Familial history of MS
 No 10,507 (87.4) 3343 (86.4) 13,850 (87.2) Reference
 Yes 1509 (12.6) 526 (13.6) 2035 (12.8) 0.09 0.91 (0.82–1.01)
Age group (years)
 18< 1310 (10.6) 362(9.0) 1672 (10.2) 0.00 1.24 (1.08–1.41)
 18–27 4855 (39.2) 1460 (36.1) 6316 (38.4) 0.00 1.14 (1.04–1.24)
 28–37 3888 (31.4) 1335 (33.0) 5225 (31.8) Reference
 38–47 1513 (12.2) 529 (13.1) 2042 (12.4) 0.75 0.98 (0.87–1.10)
 48≥ 837 (6.6) 358 (8.8) 1192 (7.2) 0.00 0.79 (0.69–0.91)
  1. OR = odds ratio, 95% CI= 95% confidence interval by logistic regression analysis
  2. Bold numbers correspond to significant value