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Table 1 Rates of reduction used in previous research

From: Study protocol: safety correction of high dose antipsychotic polypharmacy in Japan

Tanabe’s research [9]

Group

Mean dose before reduction

Reduction speed

GAF

SOI

n

Successful

1,372 mg CP

40.4 mg CP/week

34.1

4.5

37

Unsuccessful

1,832 mg CP

95.4 mg CP/week

29.8

4.8

11

Murasugi’s research [10]

Group

Mean dose before reduction

Reduction speed

GAF

SOI

n

Successful

1,581 mg CP

43.0 mg CP/week

35.2

4.8

5

Unsuccessful

2,389 mg CP

97.4 mg CP/week

44.0

4.5

5

Combination of both studies

Group

Mean dose before reduction

Reduction speed

GAF

SOI

n

Successful

1,397 mg CP

40.7 mg/week

33.5

4.5

42

Unsuccessful

2, 006 mgCP

96.0 mg/week

34.2

4.7

16

  1. Abbreviations: GAF global assessment of functioning in DSM-4-TR; SOI severity of illness; n number of patients.