Table 3.

Psychiatric and non-psychiatric service utilisation of the study population

Variable	Depression+ED group (N=254)		Depression group (N=1016)		P value
	Mean	SD	Mean	SD
Psychiatry services
Outpatient visits (n)	11.0	11.7	6.8	7.5	<0.001
Outpatient costs (US$)*	584	1293	320	458	<0.001
Inpatient days	0.8	5.2	3.4	48.5	0.711
Inpatient costs (US$)*	73	456	249	3772	0.565
Total costs (US$)*	657	1369	568	3829	<0.001
Non-psychiatry services
Outpatient visits (n)	21.3	17.7	22.1	18.7	0.660
Outpatient costs (US$)*	505	491	558	1217	0.555
Inpatient days	0.7	3.4	1.0	9.1	0.138
Inpatient costs (US$)*	194	918	170	1169	0.073
Total costs (US$)*	699	1207	727	2080	0.488

*US$ (1.00 US dollar=30 New Taiwan dollars).

ED, eating disorder; SD, standard deviation.