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Table 4 Interventions used in trials

From: Over 50 years of trial in Acta Psychiatrica Scandinavica: a survey

Types of Interventions All trials % Depression Trials % Schizophrenia trials %
Drug trials 481 82.6 183 83.9 133 84.7
Psychotherapy 40 6.9 3 1.4 12 7.6
ECT trials 28 4.8 19 8.7 4 2.5
Social therapy 6 1.0 0 0 3 1.9
Others 27 4.6 13 6.0 5 3.2
Total 582 100 218 100 157 100