Table 4.

Multiple linear regression of PHQ-2, stratifying by marital status.

Variables	Married		Unmarried		Divorced or Separation		Widowed
	β	p-Value	β	p-Value	β	p-Value	β	p-Value
Exercise
Yes	−0.09550	0.0001	−0.20620	0.0124	−0.14732	0.1218	−0.38743	0.0003
Gender (ref: Female)
Male	−0.12031	<0.0001	0.00926	0.9126	−0.30605	0.0119	−0.21875	0.2926
Age	−0.01628	<0.0001	−0.02202	<0.0001	−0.01803	0.0006	−0.01409	0.0582
Education level (ref: University and above)
Senior high school	−0.07189	0.0098	−0.08755	0.4033	0.05530	0.5889	−0.14116	0.3377
Junior high school	−0.10284	0.0257	−0.26287	0.3385	0.01762	0.9120	−0.09010	0.5829
Elementary and below	−0.08475	0.0200	−0.14505	0.4299	−0.08025	0.5624	−0.14902	0.3054
Live alone (ref: No)
Yes	0.17722	0.0741	0.05180	0.5398	0.11983	0.2241	0.05304	0.6543
BMI (ref: Normal)
Underweight	−0.17516	0.0161	0.11581	0.4635	0.45048	0.2229	0.41660	0.2775
Overweight	0.00607	0.8257	0.03756	0.6904	−0.06269	0.5405	−0.11694	0.3151
Obese	0.01418	0.6527	−0.11952	0.2268	0.11805	0.3238	−0.40455	0.0050
Smoking habit (ref: No)
Former	0.03897	0.3170	0.25555	0.0901	0.37233	0.0156	0.16473	0.5004
Current	0.16215	0.0004	0.17972	0.1940	0.32274	0.0210	0.41738	0.1286
Drinking habit (ref: No)
Former	0.02321	0.7363	0.32742	0.1483	0.28840	0.1975	0.26085	0.4378
Current	−0.00886	0.8512	0.05951	0.7286	−0.00922	0.9584	−0.19494	0.5224

BMI, body mass index; PHQ-2, Patient Health Questionnaire-2.