Table 4.

Methodological quality of the included studies per measurement property

Publication	Used questionnaire	Internal consistency	Reliability	Content validity	Structural validity	Hypotheses testing	Cross-cultural validity	Criterion validity
Awata et al. [23]	WHO-5	Good			Good	Fair	Fair	Poor
Carter et al. [42]	CES-D				Good
de Cock et al. [24]	EDS				Good
Hajos et al. [25]	WHO-5	Excellent			Excellent	Good		Poor
Hsu et al. [26]	CUDOS	Good	Good		Good	Fair	Fair	Fair
Janssen et al. [43]	PHQ-9	Poor			Good			Good
Kokoszka [27]	DDSRS	Poor				Poor		Poor
Lamers et al. [28]	PHQ-9	Poor	Poor			Fair		Good
Lehman et al. [29]	CES-D	Good			Good	Good
Lloyd et al. [30]	PHQ-9/WHO-5			Poor			Poor
Papageorgiou et al. [31]	McSad					Excellent
Rankin et al. [32]	CES-D	Poor				Poor	Fair
Reddy et al. [33]	PHQ-9/HADS-D		Excellent		Excellent	Good
Sousa et al. [34]	DCS	Fair					Good
Sousa et al. [35]	DCS	Good			Good	Good
Stahl et al. [37]	CES-D	Poor						Fair
Sultan and Fisher [36]	CES-D	Good			Good	Good
Zauszniewski et al. [38]	CES-D	Good				Good
Zauszniewski and Graham [39]	DCS	Good				Good
Zhang et al. [40]	PHQ-9	Fair	Poor					Good
Zhang et al. [41]	CES-D	Poor	Poor		Good			Good

CES-D Centre for Epidemiological Studies Depression Scale, CUDOS Clinically Useful Depression Outcome Scale, DCS Depression Cognition Scale, DDSRS Depression in Diabetes Self-Rating Scale, EDS Edinburgh Depression Scale, HADS-D Hospital Anxiety and Depression Scale-Depression, PHQ-9 Patient Health Questionnaire-9, WHO-5 World Health Organization-Five Well-Being Index