Figure 3: Proportion of Patients With Response to Depression Therapy^a,b,c.

Abbreviations: CI, confidence interval; HAMD-17, 17-item Hamilton Rating Scale for Depression; M-H, Mantel-Haenszel; PHQ-9, 9-item Patient Health Questionnaire; QIDS-C16, 16-item Quick Inventory of Depressive Symptomatology, clinician rating.

^aFor Hall-Flavin et al, the numbers presented here present some rounding differences from the study, which reported an odds ratio for the HAMD-17 score of 2.06 (95% CI, 1.07–3.95).²⁷

^bThe response rate for Hall-Flavin et al²⁸ was not reported in the original study, but data were available from a cost-effectiveness analysis published by Hornberger et al.³¹

^cHall-Flavin et al had a follow-up period of 8 weeks; Winner et al 2013 had a follow-up period of 10 weeks.^27,29