Table 1 Study participant characteristics
From: Altered immune phenotype and DNA methylation in panic disorder
|  | Control (N = 118) | Panic disorder (N = 133) | Total (N = 251) |
|---|---|---|---|
Sex, n (%) | Â | Â | Â |
 Male | 45 (38.1) | 54 (40.6) | 99 (39.4) |
 Female | 73 (61.9) | 79 (59.4) | 152 (60.6) |
Age, mean (sd)a | 40.0 (9.0) | 37.8 (11.0) | 38.8 (10.2) |
Study | Â | Â | Â |
 Iurato et al. [9], n (%) | 70 (59.3) | 85 (63.9) | 155 (61.8) |
 Shimada-Sugimoto et al. [10], n (%) | 48 (40.7) | 48 (36.1) | 96 (38.2) |