Table 4.

Analysis of risk factors of elevated PRL

Factors	OR RIS/OLZ	95% Cl RIS/OLZ	P value RIS/OLZ
Age, years	0.978/0.981	0.905 to 1.055/0.812 to 1.185	0.561/0.839
Gender	0.371/0.186	0.209 to 0.658/0.080 to 0.432	0.001**/<0.001**
Age of onset, years	1.016/0.990	0.936 to 1.103/0.818 to 1.197	0.706/0.914
Illness duration, years	0.998/1.032	0.922 to 1.080/0.852 to 1.250	0.961/0.749
Medication time, years	0.978/1.084	0.884 to 1.081/0.870 to 1.350	0.658/0.658
Body mass index, kg/m2	1.073/0.911	0.995 to 1.158/0.816 to 1.017	0.068/0.097
Dose, mg/d	0.729/0.896	0.613 to 0.868/0.833 to 0.964	<0.001**/0.003*
Fasting plasma glucose, mmol/l	1.372/2.479	1.050 to 1.792/1.423 to 4.319	0.020*/0.001*
Total cholesterol, mmol/l	0.934/1.162	0.672 to 1.299/0.733 to 1.842	0.685/0.524
Triglycerides, mmol/l	1.365/1.082	0.941 to 1.979/0.717 to 1.634	0.101/0.707

*p≤0.05

**p≤0.001

OLZ, olanzapine; PRL, prolactin; RIS, risperidone.