Table 4

Quality assessment of included studies in the summed item scoring method cut-off point 10 meta-analysis14

Study Patient selection: Patient selection: Patient selection: Patient selection: Index test: Index test: Index test: Index test: Index test:
Consecutive or random sampleAvoid case-control/avoid artificially inflated base rateAvoided inappropriate exclusionsOverall risk of biasPHQ-9 interpreted blind to reference testWas a threshold prespecified?If translated, appropriate translationIf translated, psychometric properties reportedOverall risk of bias
Allegiant studies
13. Gräfe et al 23 Low?Unclear
16. Kroenke et al 12 LowN/AN/ALow
22. Navinés et al 28 Low?Unclear
29. Thekkumpurath et al 26 ××HighN/AN/ALow
33. Williams et al 49 Low?N/AN/AUnclear
Non-allegiant studies
1. Adewuya et al 55 ×UnclearN/AN/ALow
2. Arroll et al 42 LowN/AN/ALow
3. Azah et al 62 ×?HighLow
4. Chagas et al 50 LowLow
6. de Lima Osorio et al 60 ×High?×N/AN/AHigh
7. Elderon et al 51 LowN/AN/ALow
8. Fann et al 30 ××HighN/AN/ALow
9. Fine et al 56 Low?N/AN/AUnclear
10. Gelaye et al 31 ?×?High×?High
11. Gilbody et al 57 ??UnclearN/AN/ALow
12. Gjerdingen et al 48 Low?N/AN/AUnclear
14. Hyphantis et al 32 ×High??Unclear
15. Khamseh et al 34 ?Unclear?Unclear
19. Liu et al 63 ?Unclear×?High
20. Lotrakul et al 46 ×?Unclear?Unclear
23. Patel et al 61 Low??Unclear
24. Phelan et al 58 ×High×N/AN/AHigh
25. Rooney et al 52 Low?×N/AN/AHigh
26. Sherina et al ×HighLow
27. Sidebottom et al 59 LowN/AN/ALow
28. Stafford et al 37 LowN/AN/ALow
30. Thombs et al 38 ×?High?N/AN/AUnclear
32. Watnick et al 53 ?×HighN/AN/ALow
34. Wittkampf et al 64 Low?N/AN/AUnclear
35. Zhang et al 54 ?Unclear???Unclear
36. Zuithoff et al 47 Low?Unclear