Workforce and Contents of Home Dental Care in Japanese Insurance System

Table 2

Results of three-parameter logistic model for the contents of home dental care.

	Discrimination	Difficulty	Guessing
Denture	25.47	0.26	0.18
Dental caries	4.26	0.68	<0.001
Oral surgery	3.22	0.90	<0.001
Periodontal disease	4.18	0.72	<0.001
Oral care	2.99	0.45	<0.001
Others	15.47	2.34	0.01

Parameters were estimated by maximum likelihood estimation using the following formula:, a_i: discrimination parameter, b_i: difficulty parameter, c_i: guessing parameter.