Table 3.

Comparison of demographic data and nutritional status between outpatients and inpatients according to BMI categories

	Moderate-severe underweight			Mild underweight			Standard weight			Overweight			Obesity
	6.0% (1176/19 678)			7.8% (1537/19 678)			56.0% (1537/19 678)			23.5% (1537/19 678)			6.7% (1537/19 678)
	Outpatients	Inpatients	p Value	Outpatients	Inpatients	p Value	Outpatients	Inpatients	p Value	Outpatients	Inpatients	p Value	Outpatients	Inpatients	p Value
	0.4%; n=74	5.6%; n=1102		0.8%; n=158	7.0%; n=1379		13.0%; n=2550	43.0%; n=8468		9.4%; n=1858	14.1%; n=2767		4.1%; n=801	2.6%; n=521
Age (years)	54.7±17.5	64.5±11.6	<0.001*	51.3±15.7	62.8±12.4	<0.001*	53.0±14.2	60.2±12.9	<0.001*	52.9±12.7	57.6±12.8	<0.001*	48.3±12.4	58.0±13.2	<0.001*
Male (%)	43.2	41.9	NS†	46.8	52.0	NS†	58.0	56.4	NS†	61.2	50.1	<0.001†	52.9	36.5	<0.001†
Smoking (%)	25.0	11.0	0.002†	32.4	18.5	<0.001†	35.5	25.0	<0.001†	37.9	27.6	<0.001†	36.3	29.7	<0.001†
Ratio of SGA therapy (%)	70.3	75.0	NS†	70.3	75.1	NS†	74.1	76.0	0.026†	72.7	75.1	NS†	72.9	78.5	0.023†
Status of antipsychotic therapy
Not treated (%)	10.8	10.7	0.042†	11.4	8.6	0.028†	6.3	7.0	<0.001†	5.6	6.4	<0.001†	5.7	7.1	<0.001†
Antipsychotic monopharmacy (%)	62.2	48.0		49.4	41.1		51.5	40.3		46.0	37.8		49.3	34.5
Antipsychotic polypharmacy (%)	27.0	41.3		39.2	50.3		42.2	52.7		48.4	55.8		44.9	58.3
Nutritional status
Prevalence of hypocholesterolaemia (%)	7.3	26.7	0.002†	11.1	27.7	<0.001†	11.1	23.9	<0.001†	7.6	15.6	<0.001†	6.3	13.8	<0.001†
Prevalence of hypotriglyceridaemia (%)	12.2	20.3	NS†	15.0	18.1	NS†	8.5	11.0	0.001†	3.3	3.9	NS†	1.8	2.1	NS†
Prevalence of hypoglycaemia (%)	4.8	7.6	NS†	4.0	8.4	NS†	1.8	4.9	<0.001†	1.0	4.0	<0.001†	0.4	6.1	<0.001†

Data are expressed as mean±SD.

Hypocholesterolaemia was defined as TC<150 mg/dL.

Hypotriglyceridaemia was defined as TG<50 mg/dL.

Hypoglycaemia was defined as FPG<70 mg/dL.

Moderate-severe underweight was defined as BMI<17.0 kg/m².

Mild underweight was defined as BMI≥17.0 to <18.5 kg/m².

Standard weight was defined as BMI≥18.5 to <25 kg/m².

Overweight was defined as BMI≥25 to <30 kg/m².

Obesity was defined as BMI≥30 kg/m².

*Data are analysed using Student t test between outpatients and inpatients.

†Data are analysed using χ² test between outpatients and inpatients.

BMI, body mass index; FPG, fasting plasma glucose; NS, not significant; TC, total cholesterol; TG, triglyceride.