Table 2 Predictors of electronically returned questionnaire by 22nd day. OR = odds ratio
| Â | OR (95% CI) |
|---|---|
Day of the week first email sent | |
Monday | 1 |
Tuesday | 0.85 (0.63 – 1.17) |
Wednesday | 1.00 (0.73 – 1.37) |
Thursday | 0.98 (0.71 – 1.34) |
Friday | 0.91 (0.73 – 1.25) |
Saturday | 1.10 (0.81 – 1.51) |
Age group | |
 < 55 | 1 |
55 – 64 | 1.58 (1.13 – 2.21) |
65 – 74 | 1.60 (1.16 – 2.20) |
 ≥ 75 | 1.27 (0.89 – 1.80) |
SES quartile | |
1st (most disadvantaged) | 1 |
2nd | 1.00 (0.75 – 1.32) |
3rd | 1.07 (0.81 – 1.41) |
4th (most advantaged) | 1.13 (0.88 – 1.45) |