Table 4.

Bivariate Spearman’s correlations between health-related quality of life, sociodemographics and health characteristics

	1	2	3	4	5	6	7	8	9
1. Age	1.000
2. Gender	−0.037	1.000
3. Smoking	−0.056	−0.247**	1.000
4. Chronic disease	0.111*	0.714**	0.171**	1.000
5. Body mass index	0.084	0.097*	0.069	0.037	1.000
6. Waist:hip ratio	0.096*	0.014	0.016	0.020	0.006	1.000
7. Physical activity	0.034	0.112*	−0.093*	0.134**	0.020	−0.010	1.000
8. Physical component summary score	0.043	0.048	0.023	−0.133**	−0.076	0.020	0.209**	1.000
9. Mental component summary score	−0.007	0.196**	0.048	0.061	−0.063	−0.002	0.089	0.182**	1.000

Significant correlation at *P<0.05 and **P<0.01 (two-tailed).

Body mass index in kg/m². Physical activity in total metabolic equivalent-min/week.