Table 2.
Baseline demographic differences according to CPS scores
| CPS score |
|||||
|---|---|---|---|---|---|
| 0 (n = 4,323) | 1 (n = 1,031) | 2 or greater (n = 411) | p value for trend | post hoc test | |
| Age, yearsa | 74.1 ± 6.6 | 75.3 ± 7.1 | 77.9 ± 7.3 | <0.001** | cde |
| Female genderb | 2,374 (54.9) | 501 (48.6) | 191 (43.3) | <0.001** | |
| BMIa | 22.7 ± 3.1 | 22.4 ± 3.2 | 22.2 ± 3.3 | 0.001** | ce |
| Medicationsb | <0.001** | ||||
| 0 | 853 (19.7) | 154 (14.9) | 55 (12.5) | ||
| 1 | 675 (15.6) | 141 (13.7) | 28 (6.3) | ||
| 2 | 792 (18.3) | 156 (15.1) | 54 (12.2) | ||
| 3 or more | 2,003 (46.3) | 580 (56.3) | 274 (62.1) | ||
| Family structureb | 0.016* | ||||
| Single | 401 (9.3) | 104 (10.1) | 56 (12.7) | ||
| Elderly household | 1,216 (28.1) | 298 (28.9) | 80 (18.1) | ||
| Other | 2,706 (62.6) | 629 (61.0) | 275 (66.9) | ||
| Subjective household economic statusb | <0.001** | ||||
| Very good | 664 (15.4) | 190 (18.4) | 113 (25.6) | ||
| Good | 1,765 (40.8) | 460 (44.6) | 170 (38.5) | ||
| Fair | 1,701 (39.3) | 341 (33.1) | 121 (27.4) | ||
| Bad | 193 (4.5) | 40 (3.9) | 7 (1.6) | ||
| Medical historyb | |||||
| Musculoskeletal disorder | 571 (13.2) | 140 (13.6) | 62 (14.1) | 0.557 | |
| Hypertension | 1,949 (45.1) | 489 (47.4) | 184 (41.7) | 0.380 | |
| Lipid disorder | 358 (8.3) | 63 (6.1) | 30 (6.8) | 0.061 | |
| Stroke | 138 (3.2) | 43 (4.2) | 46 (10.4) | <0.001** | |
| Diabetes | 504 (11.7) | 133 (12.9) | 53 (12.0) | 0.454 | |
| Heart disease | 538 (12.4) | 169 (16.4) | 75 (17.0) | <0.001** | |
| Respiratory disease | 183 (4.2) | 63 (6.1) | 42 (9.5) | <0.001** | |
| External injury | 109 (2.5) | 43 (4.2) | 24 (5.4) | <0.001** | |
| Cancer | 151 (3.5) | 56 (5.4) | 25 (5.7) | 0.002** | |
Values are mean ± SD or n (%).
*
p < 0.05;
**
p < 0.01. CPS score: 0 (normal), 1 (borderline intact), 2–6 (cognitive impairment).
a
Assessed by ANOVA.
b
Assessed by χ2 test.
c
Significant difference between a CPS score of 0 and a CPS score of 1.
d
Significant difference between a CPS score of 1 and a CPS score of 2 or greater.
e
Significant difference between a CPS score of 0 and a CPS score of 2 or greater.