Korean Journal of Family Practice

Table. 4.

Factors affecting the odds ratio of upper extremity pain in delivery workers

Variable	Category	Door to door deliveriers						Food deliveriers
		Crude OR			Adjusted OR^a			Crude OR			Adjusted OR^a
		OR	95% CI	P-value	OR	95% CI	P-value	OR	95% CI	P-value	OR	95% CI	P-value
Psychosocial working conditions (reference: unexposed)	Working fast	3.42	3.34–3.50	<0.001	4.75	4.62–4.89	<0.001	1.61	1.55–1.67	<0.001	0.95	0.91–1.00	0.031
	Strict deadlines	1.62	1.59–1.66	<0.001	1.83	1.79–1.88	<0.001	2.07	2.00–2.14	<0.001	1.40	1.34–1.47	<0.001
	Support from colleagues	1.18	1.15–1.20	<0.001	1.15	1.12–1.18	<0.001	1.12	1.08–1.16	<0.001	1.52	1.45–1.60	<0.001
	Support from managers	0.94	0.92–0.96	<0.001	0.88	0.85–0.90	<0.001	1.78	1.71–1.85	<0.001	2.02	1.91–2.14	<0.001
	Job stress	1.79	1.75–1.93	<0.001	1.99	1.84–2.04	<0.001	1.09	1.05–1.13	<0.001	0.87	0.82–0.91	<0.001
	Hiding emotions	2.57	2.51–2.63	<0.001	3.64	3.55–3.74	<0.001	1.19	1.15–1.24	<0.001	1.82	1.74–1.91	<0.001
Working time quality (reference: no)	Long working hours	2.08	2.04–2.13	<0.001	0.33	0.32–0.34	<0.001	1.34	1.29–1.39	<0.001	0.48	0.46–0.50	<0.001
	Lack of rest time	3.26	3.18–3.34	<0.001	3.69	3.58–3.80	<0.001	2.30	2.19–2.41	<0.001	3.89	3.63–4.16	<0.001
	Night work	4.68	4.52–4.84	<0.001	0.16	0.15–0.17	<0.001	2.72	2.62–2.82	<0.001	0.11	0.10–0.12	<0.001
	Evening work	2.89	2.82–2.96	<0.001	0.23	0.22–0.24	<0.001	3.43	3.26–3.62	<0.001	0.25	0.23–0.27	<0.001
	Sunday work	0.53	0.51–0.54	<0.001	1.64	1.58–1.70	<0.001	0.57	0.55–0.59	<0.001	0.92	0.86–0.96	<0.001
	Saturday work	1.87	1.82–1.93	<0.001	0.44	0.43–0.46	<0.001

OR, odds ratio; CI, confidence interval.

^aSex, age, employment, working duration, income adjusted.

Analyzed by multiple logistic regression analysis after adjusting variables.

P-value is obtained by multiple logistic regression analysis.