Table 1.
Participant and questionnaire characteristics.
| Characteristic | Cohort 1 (n=24) | Cohort 2 (n=21) | Cohort differences, t score (P value) | Pooled (n=45) |
| Age (years), mean SD | 88 (7) | 86 (7) | –0.76 (.50) | 87 (7) |
| Sex, female, n (%) | 19 (79) | 11 (52) | 1.94 (.06) | 30 (67) |
| EQ-VASa, mean (SD) | 78 (13) | 72 (15) | 1.35 (.19) | 75 (14) |
| Nights measured, n (%) | 4806 (87) | 1880 (61) | —b | 6686 (78) |
| Nights measured, mean (SD) | 200 (104) | 104 (97) | 3.03 (.004) | 159 (111) |
| Health reports, n (%) | 963 (—) | 803 (—) | — | 1766 (—) |
| Health reports, mean (SD) | 38 (10) | 38 (24) | 0.03 (.98) | 38 (18) |
| Health reports, matched, n (%) | 417 (43) | 234 (29) | — | 651 (37) |
| Health reports, matched, mean (SD) | 18 (9) | 15 (17) | 0.56 (.58) | 17 (13) |
aEQ-VAS: EuroQol visual analog scale.
bNot applicable.