Est. population %† | Intercept (I) | Linear slope (S) | Factor covariance (I-S)‡ | Description | |||
Mean (95% CI) | Variance‡ | Mean (95% CI) | Variance‡ | Mean (95% CI) | |||
Two-class model | |||||||
C21 | 87.4 | 25.4 (25.3 to 25.6)*** | 11.8*** | 0.1 (0.1 to 0.2) *** | 0.3*** | 0.2 (−0.1 to 0.5) | Good LS |
C22 | 12.6 | 12.4 (11.8 to 13.0)*** | 11.8*** | 0.8 (0.6 to 1.0) *** | 0.3*** | 0.2 (−0.1 to 0.5) | Hardship, ↑ LS |
Three-class model (optimal model) | |||||||
C31 | 86.1 | 25.6 (25.4 to 25.7)*** | 11.2*** | 0.1 (0.1 to 0.2)*** | 0.1*** | −0.1 (−0.2 to 0.0) | Good LS |
C32 | 8.8 | 13.4 (12.6 to 14.2)*** | 11.2*** | 1.6 (1.4 to 1.7)*** | 0.1*** | −0.1 (−0.2 to 0.0) | Hardship, ↑ LS |
C33 | 5.1 | 12.4 (10.9 to 13.8)*** | 11.2*** | −0.8 (−1.1 to −0.5)*** | 0.1*** | −0.1 (−0.2 to 0.0) | Hardship, ↓ LS |
Four-class model | |||||||
C41 | 80.2 | 26.2 (26.0 to 26.4)*** | 6.6*** | 0.1 (0.1 to 0.2)*** | 0.1*** | −0.0 (−0.2 to 0.1) | Good LS |
C42 | 10.8 | 16.4 (15.5 to 17.4)*** | 6.6*** | 1.3 (1.0 to 1.5)*** | 0.1*** | −0.0 (−0.2 to 0.1) | Hardship, ↑ LS |
C43 | 5.6 | 17.2 (15.9 to 18.5)*** | 6.6*** | −0.7 (−1.1 to −0.4)*** | 0.1*** | −0.0 (−0.2 to 0.1) | Comfortable, ↓ LS |
C44 | 3.4 | 6.7 (5.9 to 7.4)*** | 6.6*** | 0.3 (0.0 to 0.7) | 0.1*** | −0.0 (−0.2 to 0.1) | Hardship LS |
Data weighted by response characteristics; model intercept represents mean ELSI-SF score ages 63–64.
*P<0.05, **P<0.01, ***P<0.001.
†Design-weighted proportions.
‡Partially restricted growth mixture model with between-class invariant variances and covariance.
↓, decrease with age; ↑, increase with age; ELSI-SF, Economic Living Standards Index Short Form; LS, living standards.