Table 4 Multiple linear regression of the serum clozapine level (N = 94)

(Constant)

2.135

(1.879–2.391)

16.57

< 0.001

Use of fluvoxamine

0.745

(0.516, 0.975)

0.511

6.46

< 0.001

Clozapine daily dose

0.001

(0.001, 0.001)

0.323

4.08

< 0.001

Non-smoker

0.180

(0.066, 0.293)

0.249

3.14

0.002

Use of lamotrigine

0.328

(0.064, 0.592)

0.196

2.47

0.016

Body mass index

0.008

(0.001, 0.015)

0.177

2.22

0.029