| | 1. Outcome (45 day RR.) | 2. Outcome (365 day RR.) |
|---|
| | Resp | Non-Resp | Total | RR | Resp | Non-Resp | Total | RR |
IG | 43 | 49a | 92 | 46.7 % | 45 | 47 | 92 | 51.1 % |
CG | 32a | 93 | 125 | 25.6 % | 36 | 89 | 125 | 28.8 % |
Total | 75 | 142 | 217b | | 81 | 136 | 217 | |
Test |
p
| OR [95 % CI]: | ΔRR |
p
| OR [95 % CI]: | ΔRR |
Mid-p | 0.001 | 2.535 [1.432, 4.540] | 21.1 % | 0.003 | 2.354 [1.343, 4.167] | 22.3 % |
Fisher’s | 0.001 | | | | 0.003 | | | |
χ
2
| 0.001 | | | | 0.002 | | | |
- The table shows the 2x2-contingency tables w.r.t. 1. and 2. outcomes, with total figures for respondents (Resp) and non-respondents (Non-Resp) in the intervention- and control groups as defined in the APP-analysis. Response rates (RR) for the two study arms are also provided. Below the contingency tables we report the OR with 95 % CI’s, the absolute difference in response rates (ΔRR), and the p-values from three standard 2-sided tests for effect provided by the oddsratio-function from the epitools-package for R (CI’s are computed w.r.t. the mid-p value)
- aThe IG non-responders includes the 5 respondents who were successfully contacted, but refused participation in the questionnaire study; the CG responders includes 2 responders who were randomized to be pre-contacted, who were not successfully reached, but who nevertheless returned their questionnaires
- bOriginally 235 patients were included; 10 patients (7 from the IG and 3 from the CG) died before it was time to send them a questionnaire; 6 (3 in the IG and 3 in the CG) were discovered to be demented; 1 IG patient was discovered to have been mis-diagnosed with stroke, and one CG patient was discovered to have been mis-assessed as eligible. These 18 were excluded prior to analysis
