Table 3.

Results of multiple backward stepwise binary logistic regression tests to determine the factors independently associated with insufficient physical inactivity

Variable		Odds ratio	95% confidence interval	P-value
Gender	Male (reference)	*	*	*
	Female	9.05	7- 11.69	< 0.001
Place of residence	Urban (reference)	*	*	*
	Rural	0.47	0.4–0.56	< 0.001
Educational level	Less than high school diploma (reference)	*	*	*
	High school diploma or higher degrees	1.37	1.16–1.62	< 0.001
Body mass index	Normal or underweight (reference)	*	*	*
	Overweight or obese	1.23	1.06–1.43	0.004
Sleep duration	Short or normal sleep duration (< 9 h) (reference)	*	*	*
	Long sleep duration (9 h≤)	1.31	1.09–1.57	0.004
Socioeconomic status	First quantile (reference)	*	*	*
	Second quantile	1.4	0.99- 2	0.061
	Third quantile	1.95	1.4–2.72	< 0.001
	Fourth quantile	2.47	1.78–3.41	< 0.001
	Fifth quantile	3.13	2.23–4.39	< 0.001
Shift work	No (reference)	*	*	*
	Yes	0.77	0.65–0.92	0.003