Table 1 Characteristics of schizophrenia drug trials published in Italy from 1948 to 2009 (n = 81 studies)

Area of Italy

North

42

51.8 (40.4-63.0)

Center

19

23.4 (14.7-34.1)

South

20

24.6 (15.7-35.5)

Year of publication*

1948-1980

20

25.3 (16.2-36.3)

1981-1995

36

45.5 (34.3-57.1)

1996-2009

23

29.1 (19.4-40.4)

Language of publication

English

58

71.6 (60.4-81.0)

Italian

23

28.4 (18.9-39.5)

Drug treatment

Antipsychotics

64

79.0 (68.5-87.2)

Other drugs

17

20.1 (12.7-31.4)

Diagnostic criteria

Unclear

3

3.7 (0.77-10.4)

Standardized criteria

52

64.2 (52.7-74.5)

Implicit criteria

26

32.1 (22.1-43.3)