Table 2.

Calculated ratios and mean absolute prediction error (MAPE) for the prediction of plasma concentrations of risperidone and 9-hydroxyrisperidone

Patient	Risperidone		9-hydroxyrisperidone
	predicted/observed ratio	MAPE	predicted/observed ratio	MAPE
4	0.64	35.9	1.01	0.7
5	0.66	33.7	1.34	34.4
6	0.84	16.1	1.06	5.9
7	0.70	29.8	0.67	32.7
8	1.06	5.7	0.88	12.4
9	1.86	86.1	3.42	241.8
10	1.57	56.7	1.00	0.3
11	0.82	18.3	0.61	38.6
12	0.80	19.9	0.75	25.2
13	0.40	60.3	0.96	3.9
14	0.65	35.2	1.23	22.9
15	2.60	159.9	1.84	84.4
16	1.10	10.3	0.99	1.3
17	1.22	21.9	0.76	23.7
18	0.90	9.6	1.07	7.1
19	0.56	43.8	0.99	0.6
20	0.40	59.7	1.00	0.0