Table 5.

Cluster differences in risk of mortality following multimorbidity onset.

Cluster	Number of deaths*	N	Model adjusted for age and sex	Model adjusted for age, sex, marital status, household size, education, household tenure, and SIMD	Model adjusted for age, sex, marital status, household size, education, household tenure, SIMD, and comorbidity count
			HR [95% CI]	HR [95% CI]	HR [95% CI]
6 (reference)	1,100	1,200	1	1	1
1	1,350	2,010	0.63 [0.58,0.69]	0.63 [0.57,0.69]	0.60 [0.54,0.65]
2	720	1,110	0.58 [0.52,0.64]	0.56 [0.50,0.62]	0.54 [0.48,0.60]
3	210	410	0.32 [0.27,0.37]	0.33 [0.28,0.39]	0.33 [0.28,0.40]
4	370	510	0.74 [0.66,0.84]	0.77 [0.67,0.88]	0.72 [0.63,0.83]
5	370	700	0.31 [0.27,0.35]	0.30 [0.26,0.35]	0.30 [0.26,0.34]
7	240	380	0.34 [0.29,0.39]	0.35 [0.30,0.41]	0.35 [0.30,0.41]

Source: Scottish Longitudinal Study.

*Number of deaths are calculated over 5 years post multimorbidity onset.