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Table 4 Final prescribing patterns charted against patient variables, including age, sex, a positive family history of a psychotic illness (FHx), a concomitant personality disorder (PD), alcohol, cannabis, or other illicit drug use

From: Skating on thin ice: pragmatic prescribing for medication refractory schizophrenia

Rx: clozapine

Age median (IQR)

Sex (M/F)

FHx

PD

Alcohol

Cannabis

Other substances

Monotherapy

27 (16)

23/13

5

13

11

13

10

+ Quetiapine

37 (12)

8/5

2

7

2

4

4

+ Amisulpiride

31 (7)

16/10

4

5

5

7

8

+ Lithium

30 (7)

8/8

1

4

2

3

2

+ Valproate

33 (7)

10/12

5

5

7

11

9