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. 2011 Jan 5;21(1):75–80. doi: 10.2188/jea.JE20100095

Table 3. Mean numbers of inpatient, outpatient, and dental serviced days per year.

	Baseline		After intervention		Difference

	Intervention group	Control group	Intervention group	Control group	Intervention group	Control group
	Mean (SD)	Mean (SD)	Mean (SD)	Mean (SD)	Mean (SD)	Mean (SD)
Inpatient	1.3 (5.2)	0.5 (2.4)	1.6 (4.2)	1.9 (7.7)	0.3 (6.7)	1.4 (8.2)
Log-transformed value	0.1 (0.3)	0.1 (0.2)	0.2 (0.4)	0.1 (0.3)	0.0 (0.5)	0.1 (0.4)

Outpatient	16.7 (26.3)	12.8 (20.9)	20.6 (23.1)	18.1 (19.4)	3.9 (18.3)	5.3 (21.7)
Log-transformed value	0.9 (0.6)	0.8 (0.5)	1.1 (0.5)	1.0 (0.6)	0.2^a (0.4)	0.2^a (0.5)

Dental	5.2 (7.5)	4.5 (7.4)	8.3 (9.1)	7.2 (11.4)	3.1 (10.0)	2.7 (10.2)
Log-transformed value	0.5 (0.5)	0.5 (0.5)	0.8 (0.5)	0.6 (0.5)	0.3^a (0.6)	0.2 (0.6)

Abbreviation: SD, standard deviation.

^aP < 0.01.