Table 3.

Associations between working environment and weight control efforts among obese workers: regression analysis results.

Variables	Categories	OR	95% CI		p
			lower	upper
Gender	male	1.000
	female	1.267	0.738	2.177	.390
Age	<30	1.408	0.487	4.072	.527
	30–39	0.657	0.268	1.607	.357
	40–49	0.938	0.396	2.219	.884
	50–59	1.373	0.584	3.231	.467
	≥60	1.000			.151
Education	≤ middle school	0.558	0.236	1.319	.184
	high school	0.663	0.405	1.086	.103
	≥ college	1.000			.219
Monthly income (million KRW)	<1	0.537	0.200	1.447	.219
	1–1.99	0.593	0.313	1.124	.109
	2–2.99	0.726	0.405	1.301	.282
	≥3	1.000			.436
Smoking	non-smoker	1.125	0.708	1.787	.618
	smoker	1.000
Alcohol consumption (frequency)	none	1.209	0.621	2.354	.577
	≤ once per week	1.305	0.787	2.166	.302
	≥ twice per week	1.000			.586
Self-rated health	not good	0.911	0.604	1.373	.655
	good	1.000
Occupation type	professionals & technicians	0.688	0.367	1.290	.244
	service & sales	0.916	0.478	1.756	.791
	manual	1.000			.447
Workplace size (no. of employees)	<5	0.691	0.301	1.585	.383
	5–49	1.183	0.607	2.305	.621
	50–299	0.647	0.322	1.299	.221
	≥300	1.000			.070
Working hours per week	<40	2.057	0.846	5.001	.111
	40–49	2.405	1.455	3.976	.001
	50–59	1.679	0.920	3.064	.091
	≥60	1.000			.008
Working time flexibility	decided by company	2.047	0.445	9.412	.357
	can select from company-made schedule	1.623	0.323	8.147	.556
	partially decided by employee	3.520	0.649	19.091	.145
	completely decided by employee	1.000			.346
Employment category	regular	2.205	1.166	4.170	.015
	non-regular	1.000

OR: odds ratio; CI: confidence interval.

χ² = 16.267, p = .039; Hosmer–Lemeshow goodness-of-fit test.