Variables | Entire sample | Complex subgroup | Non-complex subgroup | |||
---|---|---|---|---|---|---|
(n = 3755) | (n = 1374) | (n = 2241) | ||||
IRR | 95% CI | IRR | 95% CI | IRR | 95% CI | |
BRIGHT intervention group | 1.07 | 0.88–1.30 | 1.04 | 0.82–1.32 | 1.18 | 0.92–1.51 |
ASHs 18 months prior to baseline | 1.26 | 1.23–1.28 | 1.24 | 1.21–1.27 | 1.30 | 1.23–1.39 |
Age | 1.06 | 1.05–1.06 | 1.04 | 1.03–1.05 | 1.06 | 1.05–1.08 |
Sex | ||||||
 Male (reference) |  |  |  |  |  |  |
 Femalea |  |  |  |  |  |  |
Ethnicity | ||||||
 NZ European (reference) | ||||||
 NZ Maori | 0.84 | 0.70–1.01 | 1.03 | 0.80–1.33 |  |  |
 Other b | 0.76 | 0.68–0.84 | 0.65 | 0.55–0.75 |  |  |
Marital status | ||||||
 Married (reference) | ||||||
 Widow or widower | 1.32 | 1.22–1.43 | 1.32 | 1.18–1.47 | 1.32 | 1.17–1.48 |
 Single or divorced | 1.15 | 1.00–1.32 | 1.11 | 0.91–1.34 | 1.03 | 0.82–1.30 |
Living arrangement | ||||||
 Alone (reference) | ||||||
 With only spouse or partner | 0.76 | 0.70–0.82 | 0.78 | 0.70–0.87 | 0.76 | 0.67–0.85 |
 Other | 1.06 | 0.91–1.23 | 1.04 | 0.85–1.27 | 1.01 | 0.79–1.30 |
NZDep06 c of home address | 1.04 | 1.03–1.06 | 1.03 | 1.01–1.06 | 1.05 | 1.02–1.07 |
Education | ||||||
 Completed primary (reference) | ||||||
 Completed secondary | 0.82 | 0.74–0.91 | 0.86 | 0.74–0.99 | 0.82 | 0.70–0.96 |
 Completed tertiary | 0.69 | 0.62–0.77 | 0.82 | 0.70–0.96 | 0.60 | 0.50–0.71 |
Number of health problems | 1.27 | 1.24–1.30 | 1.16 | 1.12–1.20 | 1.34 | 1.28–1.41 |
Number of medication types | 1.12 | 1.10–1.13 | 1.08 | 1.06–1.10 | 1.13 | 1.10–1.15 |
AMTS score d | 0.91 | 0.88–0.95 |  |  | 0.88 | 0.83–0.93 |
GDS-15 score e | 1.10 | 1.09–1.12 | 1.07 | 1.04–1.09 | 1.13 | 1.10–1.16 |
Social support score f | 0.97 | 0.96–0.98 | 0.98 | 0.96–1.00 | 0.98 | 0.96–0.99 |
Adequate physical activity | 0.68 | 0.63–0.73 | 0.69 | 0.61–0.77 | 0.75 | 0.66–0.84 |
Does not smoke |  |  |  |  | 1.13 | 1.01–1.27 |
Does not drink | 1.24 | 1.15–1.34 | 1.19 | 1.07–1.32 | 1.32 | 1.18–1.49 |
Frequency of alcohol intake | ||||||
 Daily or almost daily (reference) | ||||||
 Weekly | 1.02 | 0.89–1.15 | 1.07 | 0.90–1.27 | 0.97 | 0.79–1.18 |
 Monthly | 1.25 | 1.10–1.41 | 1.01 | 0.85–1.21 | 1.55 | 1.30–1.86 |
 Never | 1.32 | 1.20–1.45 | 1.22 | 1.07–1.38 | 1.48 | 1.28–1.70 |
Nutritional risk score g | 1.09 | 1.08–1.10 | 1.04 | 1.02–1.06 | 1.10 | 1.08–1.12 |