Table 3.

Possible influencing factors of the severity of MSDs symptoms.

Factors	Severity of symptoms
	COR (95% CI)	p-value	AOR*(95% CI)	p-value
Lifestyle variables
Regularity of meals
Always	ref.		ref.
Often	1.64 (0.65–4.14)	0.30	1.87 (0.71–4.94)	0.21
Sometimes	0.91 (0.39–2.14)	0.82	1.06 (0.43–2.58)	0.91
Seldom	0.93 (0.38–2.31)	0.88	1.06 (0.41–2.73)	0.91
Never	1.75 (0.63–4.86)	0.29	1.66 (0.57–4.79)	0.35
Daily sleep duration
≤6 h	1.14 (0.69–1.89)	0.62	1.08 (0.63–1.83)	0.78
7–8 h	ref.		ref.
≥9 h	1.91 (0.98–3.73)	0.06	1.63 (0.80–3.30)	0.18
Work-related variables
Working status
Full-time	ref.		ref.
Part-time	1.53 (0.92–2.54)	0.11	1.43 (0.84–2.44)	0.19
Years of employment
<5 years	ref.		ref.
≥5 years	2.00 (1.20–3.33)	0.01	1.87 (1.10–3.17)	0.02
Daily working hours
<8 h	ref.		ref.
8–10 h	0.76 (0.45–1.30)	0.32	0.72 (0.42–1.25)	0.25
11–13 h	1.30 (0.58–2.94)	0.52	1.45 (0.63–3.37)	0.39
≥14 h	2.47 (0.54–11.20)	0.24	2.60 (0.58–11.72)	0.21
Daily number of floors climbed
≤10 floors	ref.		ref.
11–20 floors	1.30 (0.73–2.30)	0.37	1.28 (0.70–2.34)	0.42
21–30 floors	1.49 (0.72–3.07)	0.28	1.48 (0.69–3.18)	0.31
≥31 floors	1.14 (0.52–2.51)	0.74	1.13 (0.50–2.55)	0.77
Daily food delivery distance
≤25 km	ref.		ref.
26–50 km	1.40 (0.74–2.65)	0.30	1.21 (0.61–2.38)	0.58
51–75 km	2.24 (1.22–4.12)	0.01	2.13 (1.13–4.01)	0.02
≥76 km	2.82 (1.35–5.92)	0.01	3.12 (1.44–6.77)	<0.01

Ref., reference;

^*: adjusted for sex, age and vehicle type.