| Variable | Responder,n (%) | Non-responder,n (%) | χ2,(P value) | Effect size,Cramer’s V |
|---|---|---|---|---|
| Age, years | ||||
| 18–25 | 47 (10.3) | 78 (14.4) | 16.35 (0.001) | 0.128 |
| 26–40 | 148 (32.3) | 211 (38.9) | ||
| 41–60 | 202 (44.1) | 214 (39.4) | ||
| ≥61 | 61 (13.3)a | 40 (7.4)a | ||
| Sex | ||||
| Male | 183 (40.0) | 247 (49.1) | 6.15 (0.046) | 0.081 |
| Female | 244 (53.3) | 246 (48.9) | ||
| Did not report as male or femaleb | 14 (3.0) | 10 (2.0) | ||
| Preferred contact method | ||||
| Post | 111 (24.3) | 93 (17.3) | 7.35 (0.007) | 0.086 |
| 346 (75.7) | 444 (82.7) |
aIndicates significant differences, based on χ2 residuals.bNot included in analyses of sex comparison; data included in all other analyses