Table 1. Properties of included studies.
| Study FirstAuthor | Year | ControlType | BA | ClinicalInterview | OutcomeMeasure | Level ofTherapist | DeliveryMode | No ofSessions | BaselineDepression Level | Population | Country | Follow-upPeriod |
| Fuchs [65] | 1977 | WL | S | Other | SR | SP | G | 6 | Mod Severe | General | USA | 6 weeks |
| Shaw [66] | 1977 | WL | S | Other | Cl/SR | SP | G | 8 | Mod Severe | University | USA | 4 weeks |
| Taylor [67] | 1977 | WL | C | Other | SR | SP | I | 6 | Mod Severe | University | Canada | 5 weeks |
| McLean [68] | 1979 | Placebo/medication | S | Other | SR | SP | I | 10 | Mod Severe | General | USA | 12 weeks |
| Comas-Diaz [69] | 1981 | WL | S | Other | Cl/SR | SP | G | 5 | Mod Severe | General | USA | Posttreatment |
| Rehm [70] | 1981 | WL | S | Structured | SR | SP | G | 7 | Mod Severe | General | USA | 7 weeks |
| M Lopez [71] | 1982 | TAU | S | Other | Cl/SR | SP | I | 10 | Mod Severe | General | Spain | Posttreatment/12weeks |
| Wilson [72] | 1982 | Placebo/WL/medication | S | Other | SR | SP | I | 7 | Mod Severe | General | Australia | 1 week/24weeks |
| Wilson [73] | 1983 | WL | S | Other | Cl/SR | SP | I | 8 | Mod Severe | General | Australia | 8 weeks |
| Skinner [74] | 1984 | WL | S | Other | SR | SP | I | 5 | Mod Severe | General | USA | 5 weeks |
| Thompson [75] | 1984 | WL | S | Structured | Cl/SR | SP | I | 6 | Mod Severe | Older | USA | 6 weeks |
| Thompson [76] | 1987 | WL | S | Structured | Cl/SR | SP | I | 16 | Mod Severe | Older | USA | 6 weeks |
| Lovett [77] | 1988 | WL | S | Other | Cl | SP | G | 10 | Mild Mod | Older | USA | 10 weeks |
| Van denHout [78] | 1995 | TAU | S | Structured | SR | SP | G | 12 | Mod Severe | General | Netherland | Posttreatment/12weeks |
| Rokke [79] | 1999 | WL | S | Structured | Cl | SP | I | 10 | Mild Mod | Older | USA | 10 weeks |
| Gallagher [80] | 2000 | WL | S | Structured | Cl | SP | G | 10 | Mild Mod | General | USA | 12 weeks |
| Study First Author | Year | Control Type | BA | ClinicalInterview | OutcomeMeasure | Level ofTherapist | DeliveryMode | No ofSessions | BaselineDepression Level | Population | Country | Follow-upPeriod |
| Cullen [81] | 2006 | WL | C | Structured | SR | SP | I | 10 | Mod Severe | General | USA | Posttreatment/12weeks |
| Dimijian [82] | 2006 | Placebo/medication | C | Structured | Cl/Self R | SP | I | 16 | Mild Mod/ModSevere | General | USA | 8 weeks |
| Gawrysiak [83] | 2009 | WL | C | Other | SR | SP | I | 1 | Mod Severe | University | USA | 2 weeks |
| Mitchell [84] | 2009 | TAU | S | Structured | Cl | NS | I | 9 | Mod Severe | General | USA | 9 weeks/12months/24month |
| Ekers [85] | 2011 | TAU | C | Structured | SR | NS | I | 12 | Mod Severe | General | UK | 12 weeks |
| Armento [86] | 2012 | Placebo | C | Structured | SR | SP | G | 1 | Mild Mod | University | USA | 4 weeks |
| Carlbring [87] | 2013 | WL | C | Structured | SR | SP | SH | 7 | Mod Severe | General | Sweden | 8 weeks |
| Kanter [88] | 2013 | TAU | C | Structured | Cl/SR | SP | I | 12 | Mod Severe | General | USA | Posttreatment/36weeks |
| Moradveisi [89] | 2013 | Medication | C | Structured | Cl/SR | SP | I | 8 | Mod Severe | General | Iran | 4/13/49weeks |
| O’Mahen [90] | 2013 | TAU | C | Other | SR | NS | SH | 8 | Mod Severe | Women | UK | 17 weeks/24weeks |