Higher Levels and Intensity of Physical Activity Are Associated with Reduced Mortality among Community Dwelling Older People

Table 5

Hazard ratios (95% CI, P value) by tertile of total PA and category of intensity referent to the first tertile/category.

MODEL			Total PA		Intensity
		T1	T2	T3	Low	Medium	High
	𝑁=946^1	313	302	331	219	275	452
(1) (adjusted for age and sex)		1	0.66	0.54	1	0.57	0.45
	CI		(0.50, 0.87)	(0.40, 0.71)		(0.41, 0.79)	(0.37, 0.55)
	P value		0.004	0.0001		0.001	0.000001
	P trend		0.0001			0.0000001
(2) (adjusted for age, sex and potential confounders^2)		1	0.73	0.58	1	0.61	0.50
	CI		(0.55, 0.96)	(0.43, 0.80)		(0.44, 0.85)	(0.40, 0.62)
	P value		0.025	0.001		0.004	0.00001
	P trend		0.001			0.00001
(3) (adjusted for age, sex, potential confounders and possible causalpathways^3)		1	0.84	0.74	1	0.74	0.61
	CI		(0.60, 1.17)	(0.56, 0.97)		(0.51, 1.07)	(0.47, 0.79)
	P value		0.3	0.04		0.1	0.001
	P trend		0.04			0.001

¹Participants with complete data on all variables in the models.
²BMI, smoking status, Carstairs, GDS, marital status, living alone, housing tenure.
³BMI, smoking status, MMSE score, Carstairs, GDS, marital status, living alone, housing tenure, HDL, diastolic BP, history of emphysema, cancer, CVD, diabetes, hip fracture, ADLscore, weight, loss, and medication.