Developing physical Activity and Sedentary behaviour thresholds for the Secondary prevention of Heart disease (DASSH): a cohort mortality survival tree analysis

Table 2 Hazard ratios [95% CI] for cardiac and all-cause mortality by moderate-to-vigorous physical activity and sedentary behaviour in adults with coronary heart disease (n = 40,156)

	n	n cases	Unadjusted model	Adjusted model^a	Area under ROC curve^d	Sensitivity^d	Specificity^d
Moderate-to-vigorous physical activity^b
All-cause mortality, < 146 min/wk	10,205	4501	Ref	Ref	0.582	0.368	0.204
All-cause mortality, ≥ 146 min/wk	29,951	7739	0.503 [0.485; 0.522]	0.653 [0.629; 0.679]
Cardiac mortality, < 96 min/wk	7912	822	Ref	Ref	0.532	0.310	0.246
Cardiac mortality, ≥ 96 min/wk	32,244	1675	0.420 [0.386–0.456]	0.606 [0.556; 0.661]
Sedentary behaviour^c
All-cause mortality, ≥ 6 h/day	15,661	5716	Ref	Ref	0.570	0.329	0.188
All-cause mortality, < 6 h/day	24,495	6524	0.829 [0.797; 0.861]	0.844 [0.812;;0.877]
Cardiac mortality, ≥ 5 h/day	19,676	1509	Ref	Ref	0.544	0.485	0.398
Cardiac mortality, < 5 h/day	20,480	988	0.778 [0.719; 0.842]	0.812 [0.751; 0.880]

ROC Receiver Operating Characteristic
^aAll models adjusted for age, sex, education level, body mass index, smoking, type 2 diabetes, family history of heart disease
^bModel also adjusted for Sedentary Behaviour
^cModel also adjusted for Moderate-to-Vigorous Physical Activity
^dBased on the unadjusted model

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