Table 4.

The multiple linear regression of the depression in 511 ED patients

Independent variables	B	SE	95% CI		P-value
			Lower	Upper
Severity of ED (IIEF-5)	0.984	0.391	0.216	1.752	0.012*
Education level	− 1.843	0.412	− 2.652	− 1.033	< 0.001**
Smoking	3.011	0.78	1.478	4.545	< 0.001**
Regular exercise	− 1.697	0.812	− 3.292	− 0.101	0.037*
Coffee Drinking	− 2.055	1.129	− 4.272	0.163	0.069
Treatment history	0.208	0.806	− 1.376	1.792	0.796
Occupation
Official	Ref	Ref	Ref	Ref	Ref
Corporate Employee	1.453	1.374	− 1.247	4.153	0.291
Self-employed or Freelance	1.953	1.232	− 0.466	4.373	0.113
Farmers	2.4	1.571	− 0.687	5.487	0.127
Others	1.157	1.285	− 1.368	3.683	0.368
Hobbies
Computer/Video Games	Ref	Ref	Ref	Ref	Ref
Ball game	− 1.805	1.027	− 3.822	0.213	0.079
Fitness/Jogging	0.825	1.146	− 1.427	3.077	0.472
Others	− 0.954	1.007	− 2.933	1.025	0.344

Linear regression analysis was used to identify associated factors of depression. CI Confidence interval. Ref Reference category. ** p < 0.001. * p < 0.05