Table 3:

Multivariable analysis of the risk factors for pain

	Moderate pain vs. no pain			Severe pain vs. no pain
Variable
Age (yr)	OR	95% CI		OR	95% CI
45–49	Reference
50–54	1.208	0.959	1.523	1.316	1.016	1.704
55–59	1.105	0.885	1.381	1.657*	1.298	2.114
60–64	1.165	0.951	1.427	1.737*	1.367	2.207
65–69	1.188	0.951	1.484	1.590*	1.227	2.062
70–74	1.243	0.974	1.587	1.563*	1.173	2.082
75+	1.202	0.929	1.556	1.241	0.907	1.699
Gender
Male
Female	1.708*	1.477	1.974	2.380*	1.948	2.909
Education
Illiterate
Primary	0.854	0.736	0.992	0.647*	0.535	0.783
High School or above	0.866	0.749	1.002	0.481*	0.394	0.588
Liberate	1.006	0.878	1.152	0.900	0.753	1.074
Disability
No
Yes	1.623*	1.366	1.928	2.706*	2.175	3.366
Occupation
Non-agriculture
Agriculture	1.173*	1.052	1.308	0.966	0.837	1.115
Marital status
Non-married
Married	0.847	0.726	0.989	0.814	0.686	0.966
Drinking
Former drinker
Never drinker	0.866	0.738	1.015	0.735*	0.595	0.907
Occasional drinker	1.196	0.883	1.618	0.786	0.566	1.092
Regular drinker	0.859	0.714	1.033	0.787	0.624	0.992
Residence
Rural
Urban	0.803*	0.720	0.897	0.539*	0.459	0.633
Food Expenditure (Yuan)
>66.8 and ≤139.4 vs. ≤66.8	1.100	0.966	1.252	1.015	0.861	1.197
>139.4 and ≤290.1 vs. ≤66.8	1.076	0.935	1.239	0.798	0.664	0.958
>290.1 vs. ≤66.8	1.140	0.959	1.356	0.854	0.705	1.034
Healthy
Yes
No	1.545*	1.202	1.987	2.026*	1.452	2.827
Smoking
Non-smoker
Smoker	1.104	0.960	1.269	1.201	0.995	1.449

Notes:

^*P<0.05