Mode of final interview | Mode and feedback interaction | Participant characteristics | Time in study | All covariates | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Characteristic | OR | 95% CI | P | OR | 95% CI | p | OR | 95% CI | p | OR | 95% CI | p | OR | 95% CI | p |
Feedback only, no covariates | 1.38 | 1.16, 1.64 | < 0.001 | ||||||||||||
Feedback | 1.42 | 1.17, 1.72 | < 0.001 | 1.27 | 0.87, 1.86 | 0.2 | 1.38 | 1.15, 1.65 | < 0.001 | 1.38 | 1.16, 1.64 | < 0.001 | 1.27 | 0.86, 1.88 | 0.22 |
Final mode of interview (Ref: Nurse) | |||||||||||||||
Interviewer | 0.21 | 0.16, 0.27 | < 0.001 | 0.19 | 0.13, 0.26 | < 0.001 | 0.19 | 0.13, 0.27 | < 0.001 | ||||||
Web | 0.13 | 0.10, 0.16 | < 0.001 | 0.11 | 0.08, 0.16 | < 0.001 | 0.11 | 0.08, 0.16 | < 0.001 | ||||||
Switcher dummy | 0.61 | 0.46,0.80 | < 0.001 | 0.36 | 0.27, 0.46 | < 0.001 | 0.62 | 0.46, 0.81 | < 0.001 | ||||||
Feedback * Final mode of interview | |||||||||||||||
Feedback * Interviewer | 1.10 | 0.68, 1.79 | 0.7 | 1.10 | 0.67, 1.80 | 0.71 | |||||||||
Feedback * Web | 1.20 | 0.73, 1.98 | 0.5 | 1.19 | 0.71, 1.98 | 0.51 | |||||||||
Age group (Ref: < 30) | |||||||||||||||
30–50 | 1.32 | 0.99, 1.77 | 0.06 | 1.20 | 0.87, 1.65 | 0.27 | |||||||||
50–70 | 1.99 | 1.50, 2.64 | < 0.001 | 2.02 | 1.49, 2.75 | < 0.001 | |||||||||
70 + | 2.03 | 1.42, 2.92 | < 0.001 | 1.92 | 1.30, 2.84 | 0.001 | |||||||||
Sex (Ref: Male) | |||||||||||||||
Female | 1.11 | 0.92, 1.32 | 0.27 | 1.12 | 0.92, 1.36 | 0.25 | |||||||||
Country (Ref: England) | |||||||||||||||
Wales | 0.83 | 0.55, 1.26 | 0.39 | 0.98 | 0.63, 1.51 | > 0.9 | |||||||||
Scotland | 1.13 | 0.79, 1.63 | 0.51 | 1.01 | 0.68, 1.50 | > 0.9 | |||||||||
Highest qualification (Ref: Degree) | |||||||||||||||
A-level/GCSE | 0.83 | 0.68, 1.01 | 0.06 | 0.76 | 0.62, 0.94 | 0.01 | |||||||||
Other/None | 0.82 | 0.61, 1.10 | 0.19 | 0.81 | 0.59, 1.11 | 0.19 | |||||||||
In paid employment (Ref: Yes) | |||||||||||||||
No | 0.93 | 0.75, 1.16 | 0.51 | 0.90 | 0.71, 1.14 | 0.40 | |||||||||
Self-rated health (Ref: Excellent/Good) | |||||||||||||||
Fair/Poor | 0.99 | 0.80, 1.22 | 0.94 | 0.96 | 0.76, 1.21 | 0.72 | |||||||||
See NHS last 12 months (Ref: No) | |||||||||||||||
Yes | 1.09 | 0.90, 1.31 | 0.38 | 1.05 | 0.86, 1.28 | 0.65 | |||||||||
Time in study (Ref: Original IP1 sample) | |||||||||||||||
IP4/7/10 refreshment | 1.02 | 0.84, 1.24 | 0.9 | 1.04 | 0.84, 1.30 | 0.70 | |||||||||
IP11 refreshment | 1.04 | 0.81, 1.33 | 0.7 | 1.01 | 0.76, 1.33 | > 0.9 |