No.	Country	Sample Size	Scale	Associated Factors		References
No.	Country	Sample Size	Scale	Risk Factors	Protective Factors	References
1	China	19,515	PHQ-9	●		[5]
2	Japan	4798	EPDS, K6	●		[6]
3	China	4087	PHQ-9	●	★	[7]
4	China	3434	PHQ-9	●		[8]
5	China	3434	PHQ-9	●	★	[9]
6	America	2099	EPDS	●		[10]
7	America	1856	EPDS	●		[11]
8	Japan	1777	EPDS	●		[12]
9	Canada	1764	EPDS	●	★	[13]
10	China	1285	EPDS	●		[14]
11	Canada	1258	K10	●		[15]
12	Australia	1219	EPDS	●	★	[16]
13	Israel	1114	PHQ-2	●	★	[17]
14	Netherlands	1008	EPDS	●		[18]
15	China	751	PHQ-9	●		[19]
16	China	751	PHQ-9	●		[20]
17	America	715	EPDS	●	★	[21]
18	Iran	540	DASS-21	●		[22]
19	China	531	PHQ-9	●	★	[23]
20	America	524	BSI	●	★	[24]
21	Spain	514	EPDS	●	★	[25]
22	Vietnam	513	PHQ-9	●	★	[26]
23	Türkiye	497	EPDS	●		[27]
24	Sweden	470	EPDS	●	★	[28]
25	Iran	437	DASS-21	●		[29]
26	Türkiye	403	HADS	●		[30]
27	Iran	392	BDI	●		[31]
28	Japan	359	EPDS	●		[32]
29	Türkiye	336	BDI	●	★	[33]
30	Türkiye	327	DASS-21	●	★	[34]
31	Iran	318	EPDS	●		[35]
32	Romania	304	HADS	●	★	[36]
33	Türkiye	297	HADS	●		[37]
34	China	274	EPDS	●		[38]
35	Türkiye	269	BDI	●		[39]
36	Türkiye	260	EPDS, BDI	●		[40]
37	Spain	164	EPDS	●		[41]
38	Türkiye	149	BDI	●		[42]
39	United Kingdom	137	BDI-II	●		[43]
40	Spain	100	SCL-90-R	●		[44]
41	Türkiye	96	BDI	●		[45]
42	Brazil	79	PHQ-9	●		[46]
43	Italy	78	EPDS	●		[47]
44	Türkiye	63	IDAS II	●		[48]
45	America	33	CES-D	●		[49]
		59,329