Table 3 Comparison of participants and non-participants in the PRO-AGE study at the three study sites
London (U.K.) | Hamburg (Germany) * | Solothurn (Switzerland) | |||||||
|---|---|---|---|---|---|---|---|---|---|
Participants | Non-participants | P-value | Participants | Non-participants | P-value | Participants | Non-participants | P-value | |
Randomised study | |||||||||
Age (years) | 74.6 ± 6.3 (2503) | 75.7 ± 7.3 (1292) | <.0001 | 71.8 ± 7.6 (2580) | 71.3 ± 8.1 (1234) | 0.10 | 74.5 ± 6.0 (2284) | 74.8 ± 6.8 (1098) | 0.68 |
Female gender | 54.9% (1375/2503) | 58.3% (753/1292) | 0.12 | 62.7% (1617/2580) | 62.1% (821/1322) | 0.70 | 56.6% (1293/2284) | 52.7% (579/1098) | 0.03 |
Concurrent comparison group | |||||||||
Age (years) | 74.9 ± 6.5 (636) | 75.9 ± 7.5 (667) | 0.01 | 72.0 ± 8.2 (746) | 71.3 ± 8.5 (631) | 0.31 | 74.2 ± 6.0 (1171) | 75.1 ± 6.8 (687) | 0.01 |
Female gender | 57.6% (366/636) | 57.4% (383/667) | 0.63 | 68.1% (508/746) | 63.7% (690/1084) | 0.001 | 57.0% (667/1171) | 60.0% (412/687) | 0.32 |