Table 3.

HRs (95% CI) of the risk of DM according to quartiles of total PA, occupational PA, and domestic PA stratified by age, sex, BMI, smoking status, and alcohol consumption.

	No. of participants/DM	total PA		Occupational PA		Domestic PA
		HR (95% CI)	P-interaction	HR (95% CI)	P-interaction	HR (95% CI)	P-interaction
Age			0.1673		0.0175		0.7685
Age ≤ 42	5654/198	0.750(0.501, 1.123)		0.973(0.634, 1.493)		0.815(0.521, 1.273)
Age > 42	4114/377	0.642(0.470, 0.875)		0.611(0.445, 0.838)		0.875(0.622, 1.230)
Gender			0.9214		0.9324		0.7085
Male	4517/251	0.719(0.502, 1.030)		0.800(0.543, 1.179)		1.023(0.639, 1.638)
Female	5826/324	0.729 (0.522,1.019)		0.737(0.530, 1.024)		0.790(0.504, 1.237)
BMI			0.9534		0.1807		0.6764
BMI < 20	2090/51	0.732(0.321, 1.669)		0.786(0.347, 1.781)		1.755(0.656, 4.693)
20 ≤ BMI ≤ 24	5038/208	0.689(0.459, 1.033)		0.779(0.521, 1.164)		0.739(0.461, 1.183)
BMI > 24	3215/316	0.777(0.559, 1.081)		0.750(0.528, 1.064)		0.842(0.592, 1.197)
Smoking status			0.9205		0.4472		0.5550
Ever/current smoker	3086/180	0.719(0.471, 1.098)		0.722(0.463, 1.126)		0.916(0.562, 1.493)
Never smoker	7257/395	0.727(0.538, 0.982)		0.765(0.565, 1.036)		0.891(0.627, 1.265)
Alcohol consumption			0.7037		0.6156		0.4550
Drinker	3707/209	0.719(0.486, 1.065)		0.761(0.497, 1.166)		1.121(0.766, 1.640)
Non-drinker	6636/366	0.748(0.546, 1.023)		0.781(0.573, 1.064)		0.715(0.454, 1.127)

Results from model, which adjusted for age, gender (male or female), marriage status (married or not), educational attainment levels (low, medium, or high), household income per capita levels (low, medium, or high), urbanization index, smoking status (ever/current or never smoker), alcohol consumption (yes or no), total energy intake, SBP, DBP, and BMI.

HR, hazard ratio; CI, confidence interval; DM, diabetes mellitus; PA, physical activity; SBP, systolic blood pressure; DBP, diastolic blood pressure; BMI, body mass index.