Table 2.
Construct validity of intrinsic capacity and sub-domain score
| Demographic and health characteristics | Mean (SD) | |||||
|---|---|---|---|---|---|---|
| Intrinsic capacity | Cognitive | Locomotor | Vitality | Sensory | Psychological | |
| Age, years | ||||||
| 65–69 | 0.984 (2.301) | 0.265 (0.977) | 0.556 (1.321) | 0.175 (1.007) | 0.327 (0.886) | 0.055 (1.666) |
| 70–74 | 0.309 (2.232) | 0.115 (1.042) | 0.108 (1.312) | 0.046 (0.952) | 0.124 (0.962) | 0.100 (1.585) |
| 75 or above | −1.008 (2.510) | −0.306 (1.378) | −0.527 (1.413) | −0.167 (0.911) | −0.328 (1.148) | −0.070 (1.738) |
| p-value | <0.0001 | <0.0001 | <0.0001 | <0.0001 | <0.0001 | 0.0345 |
| Sex | ||||||
| Male | 1.610 (1.908) | 0.450 (0.792) | 0.426 (1.373) | 0.818 (0.572) | 0.172 (0.991) | 0.116 (1.607) |
| Female | −1.344 (2.073) | −0.377 (1.313) | −0.289 (1.367) | −0.777 (0.529) | −0.060 (1.061) | −0.051 (1.712) |
| p-value | <0.0001 | <0.0001 | <0.0001 | <0.0001 | <0.0001 | 0.0021 |
| Education | ||||||
| Primary or below | −0.450 (2.411) | −0.193 (1.237) | −0.155 (1.356) | −0.116 (0.947) | -0.045 (1.060) | −0.072 (1.712) |
| Secondary | 1.410 (2.019) | 0.573 (0.681) | 0.517 (1.397) | 0.357 (0.942) | 0.274 (0.926) | 0.182 (1.573) |
| Tertiary or above | 1.977 (1.891) | 0.688 (0.562) | 0.839 (1.398) | 0.414 (0.919) | 0.372 (0.892) | 0.496 (1.328) |
| p-value | <0.0001 | <0.0001 | <0.0001 | <0.0001 | <0.0001 | <0.0001 |
| Social economic status ladder | ||||||
| 1–4 | 0.092 (2.417) | 0.099 (1.086) | −0.040 (1.405) | 0.113 (0.952) | 0.045 (1.019) | −0.278 (1.819) |
| 5–6 | 0.425 (2.372) | 0.139 (1.055) | 0.190 (1.379) | 0.043 (0.977) | 0.109 (0.992) | 0.249 (1.503) |
| 7–10 | 0.424 (2.381) | 0.016 (1.167) | 0.345 (1.371) | −0.027 (0.992) | 0.098 (1.097) | 0.471 (1.299) |
| p-value | 0.0002 | 0.0949 | <0.0001 | 0.014 | 0.2039 | <0.0001 |
| Number of chronic diseases | ||||||
| 0 | 0.623 (2.495) | 0.047 (1.129) | 0.357 (1.411) | 0.162 (0.996) | 0.249 (0.892) | 0.187 (1.570) |
| 1–2 | 0.227 (2.415) | 0.050 (1.125) | 0.136 (1.390) | 0.026 (0.962) | 0.058 (1.025) | 0.137 (1.569) |
| 3 or more | −0.288 (2.518) | 0.017 (1.233) | −0.213 (1.416) | −0.054 (0.958) | −0.057 (1.105) | −0.243 (1.834) |
| p-value | <0.0001 | 0.7482 | <0.0001 | <0.0001 | <0.0001 | <0.0001 |
| Number of IADL limitations | ||||||
| 0 | 0.623 (2.315) | 0.162 (1.064) | 0.308 (1.331) | 0.166 (0.953) | 0.125 (1.003) | 0.155 (1.569) |
| 1–2 | −1.169 (2.254) | −0.300 (1.312) | −0.526 (1.308) | −0.401 (0.890) | −0.132 (1.062) | −0.237 (1.811) |
| 3–5 | −3.136 (2.344) | −0.795 (1.516) | −1.873 (1.545) | −0.609 (0.764) | −0.407 (1.299) | −1.161 (2.116) |
| p-value | <0.0001 | <0.0001 | <0.0001 | <0.0001 | <0.0001 | <0.0001 |