Table 4.
Survival by disability type. Probability in percent (95% CI) of surviving the 35.8 (denoted 35) years follow-up time for 30-year-olds at baseline ((35p30)), by sex and baseline disability status. Probabilities are estimated for a specific age, but the underlying model is based on all ages 25–44 years at baseline. N = 30,080.
| Men | Women | |
|---|---|---|
| Disability | Age 30 years at baseline (35p30) |
Age 30 years at baseline (35p30) |
| Any disability | ||
| No | 91.3 (90.7, 91.8) | 94.0 (93.6, 94.5) |
| Yes | 85.0 (83.3, 86.6)* | 89.4 (88.0, 90.7)* |
| Disability type | ||
| Hearing impairment | ||
| None | 90.4 (89.8, 90.9) | 93.4 (93.0, 93.8) |
| Moderate | 89.5 (87.5, 91.2) | 92.8 (91.3, 94.0) |
| Severe | 87.2 (82.0, 91.0) | 91.2 (87.4, 93.8) |
| Vision impairment | ||
| None | 90.5 (90.0, 91.1) | 93.6 (93.1, 94.0) |
| Moderate | 86.0 (82.5, 88.9)* | 90.4 (87.9, 92.4)* |
| Severe | 74.2 (59.7, 84.2)* | 81.9 (70.8, 89.1) |
| Motor impairment | ||
| None | 90.6 (90.1, 91.2) | 93.6 (93.2, 94.0) |
| Moderate | 86.5 (82.8, 89.4)* | 90.7 (88.0, 92.8)* |
| Severe | 56.9 (43.4, 68.3)* | 68.3 (56.8, 77.3)* |
| Physical illness | ||
| None | 90.6 (90.0, 91.1) | 93.6 (93.2, 94.0) |
| Moderate | 87.6 (86.2, 88.9)* | 91.5 (90.4, 92.5)* |
| Severe | 76.8 (72.6, 80.5)* | 83.8 (80.6, 86.5)* |
| Mental health problems | ||
| None | 90.6 (90.1, 91.0) | 93.7 (93.2, 94.0) |
| Moderate | 82.4 (80.0, 84.6)* | 87.9 (86.2, 89.5)* |
| Severe | 72.5 (66.8, 77.4)* | 80.8 (76.5, 84.3)* |
| Other disability⁎⁎ | ||
| No | 91.3 (90.7, 91.8) | 94.0 (93.6, 94.4) |
| Yes | 82.6 (75.3, 87.8)* | 87.9 (82.6, 91.6)* |
Table 4, note: Probabilities were predicted from flexible parametric survival models (baseline hazard curve is estimated with 4 knots) including the covariates age, sex, disability and significant two-way interaction terms (there were no significant three-way interaction terms) including the entire age range 25–44 years at baseline in HUNT1. Included covariates were time-dependent (no knots).
Significant (p < 0.05) different probability from reference category ‘No disability’ (or ‘None’ for disability types). Significance level was estimated using post-hoc predictions, of differences in survival curves between disability groups, from the flexible parametric regression model.
For ‘Other disability’, severity is not specified, as those with ‘yes’ responses constitute those responding ‘yes’ to the introductory question about having a disability but not one of the five types listed above.