Table 3

Multiple regression analyses of ANS activity, age, sex, Body mass index, GAF, duration of illness, CPZeq, BPDeq, and DZPeq as independent variables
ANS activity
lnLF lnHF
Independent variable β P β P
Age −0.197 0.375 −0.015 0.938
Sex 0.252 0.086 0.237 0.063
Body mass index −0.024 0.880 0.047 0.733
GAF −0.004 0.978 0.046 0.724
Duration of illness −0.017 0.924 −0.157 0.300
CPZeq*1 −0.369 0.048*2 −0.415 0.011*3
BPDeq*4 −0.089 0.584 −0.259 0.070
DZPeq*5 −0.201 0.219 −0.151 0.284

*1The daily dose of antipsychotic drug was converted to approximate chlorpromazine equivalent.

*2,3Significant difference (P < 0.05).

*4The daily dose of anticholinergic antiparkinsonian drug was converted to approximate biperiden equivalent.

*5The daily dose of anxiolytic drug was converted to approximate diazepam equivalent.

Iwamoto et al.

Iwamoto et al. BMC Psychiatry 2012 12:199   doi:10.1186/1471-244X-12-199

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