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

Table 4 Hazard ratios [95% CI] for cardiac and all-cause mortality by moderate-to-vigorous physical activity and sedentary behaviour in females with coronary heart disease (n = 15,278)

	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, < 89 min/wk	3039	1298	Ref	Ref
All-cause mortality, ≥ 89 min/wk	12,239	2538	0.403 [0.377; 0.431]	0.629 [0.586; 0.675]	0.593	0.338	0.152
Cardiac mortality, < 146 min/wk	4145	328	Ref	Ref
Cardiac mortality, ≥ 146 min/wk	11,133	379	0.374 [0.323; 0.434]	0.617 [0.528; 0.721]	0.601	0.464	0.262
Sedentary behaviour^c
All-cause mortality, ≥ 6 h/day	5394	1799	Ref	Ref
All-cause mortality, < 6 h/day	9884	2037	0.715 [0.668; 0.766]	0.803 [0.749; 0.861]	0.546	0.311	0.218
Cardiac mortality, ≥ 8 h/day	2754	204	Ref	Ref
Cardiac mortality, < 8 h/day	12,524	503	0.557 [0.461; 0.673]	0.746 [0.614; 0.907]	0.537	0.188	0.115

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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