Table 3. Associations between number of poor health behaviours and risk of admission outcomes among Hertfordshire Cohort Study participants.

Association between number of poor health behaviours and the risk of each outcome*		Men		Women
		Hazard ratio (95% CI)	P-value	Hazard ratio (95% CI)	P-value
Any admission/death	Unadj	1.05 (1.01,1.09)	0.013	1.11 (1.05,1.16)	<0.001
	Adj	1.05 (1.01,1.09)	0.010	1.10 (1.05,1.16)	<0.001
Day elective admission/death	Unadj	1.05 (1.00,1.09)	0.043	1.11 (1.04,1.18)	0.002
	Adj	1.05 (1.00,1.09)	0.029	1.10 (1.04,1.18)	0.002
Overnight elective admission/death	Unadj	1.06 (0.99,1.13)	0.074	1.17 (1.07,1.29)	0.001
	Adj	1.06 (1.00,1.13)	0.056	1.17 (1.07,1.28)	0.001
Any emergency admission/death	Unadj	1.13 (1.06,1.20)	<0.001	1.25 (1.14,1.37)	<0.001
	Adj	1.13 (1.06,1.20)	<0.001	1.25 (1.14,1.37)	<0.001
Any admission lasting longer than 7 days/death	Unadj	1.13 (1.05,1.22)	0.001	1.31 (1.18,1.46)	<0.001
	Adj	1.14 (1.05,1.22)	0.001	1.32 (1.18,1.46)	<0.001
Any readmission within 30 days/death**	Unadj	1.07 (0.99,1.16)	0.094	1.30 (1.14,1.47)	<0.001
	Adj	1.08 (0.99,1.17)	0.074	1.30 (1.14,1.47)	<0.001
Emergency readmission within 30 days/death**	Unadj	1.16 (1.05,1.28)	0.004	1.40 (1.20,1.63)	<0.001
	Adj	1.17 (1.05,1.29)	0.003	1.40 (1.20,1.64)	<0.001

Poor health behaviours: low physical activity (activity score ≤50), poor diet (prudent diet score in bottom quarter of distribution), high alcohol consumption (men: >21 units per week, women: >14 units per week), current smoker.

^*Estimates of association are hazard ratios (95% CI) from PWP-TT models, corresponding to the risk of each hospital related outcome per unit increase in the number of poor health behaviours.

^**Estimates of association are relative risks (95% CI) from Poisson regression models, corresponding to the risk of each hospital related outcome per unit increase in the number of poor health behaviours.

Unadj: unadjusted model; Adj: adjusted for age