Preserving natural teeth versus extracting them: a willingness to pay analysis

BMC Oral Health

Table 6 The results of marginal effect

Variable (reference group)	WTP for painless anterior tooth		WTP for painful anterior tooth		WTP for painless posterior tooth		WTP for painful posterior tooth
Variable (reference group)	dy/dx	P-value	dy/dx	P-value	dy/dx	P-value	dy/dx	P-value
Gender (male)
Female	− 3.94	0.632	5.69	0.5	5.21	0.438	5.24	0.457
Marital status (single)
Married	− 4.57	0.622	− 0.55	0.954	− 12.42	0.124	− 6.93	0.394
Divorced	− 8.92	0.64	0.72	0.973	− 7.34	0.684	0.35	0.985
Widow	− 12.90	0.6	− 9.65	0.69	− 17.77	0.382	− 12.77	0.565
Education (associate and less)
Bachelor and higher	10.82	0.178	16.78	0.035	21.00	0	11.97	0.079
Employment status (unemployed)
Employed	24.10	0.013	20.94	0.049	25.95	0.001	35.77	0
Retired	22.46	0.204	6.77	0.702	15.78	0.261	25.74	0.082
Job seeking	8.44	0.542	7.72	0.613	12.18	0.29	15.88	0.185
Housewife	− 0.18	0.988	− 16.55	0.168	− 0.22	0.982	1.13	0.9
Basic insurance (don't have)
Have	5.40	0.505	− 3.96	0.667	− 15.94	0.055	1.62	0.827
Domicile (metropolis)
Metropolis	9.95	0.16	5.96	0.422	6.98	0.236	6.11	0.319
Matching between revenues and expenses (no)
Yes	44.07	0	36.01	0	32.94	0	34.95	0
Dentist (specialist)
General	40.62	0.061	− 0.43	0.979	10.70	0.461	− 0.94	0.946
Each	− 3.39	0.656	− 1.72	0.837	0.76	0.905	− 2.51	0.706
Center treatment (office)
Private clinic	− 32.48	0.002	− 40.00	0	− 13.19	0.145	− 20.81	0.022
Public clinic	− 67.40	0	− 59.13	0	− 41.55	0	− 43.62	0
Each	− 30.98	0.001	− 31.76	0.001	− 13.03	0.074	− 19.03	0.013
Age	0.74	0.029	0.78	0.038	1.09	0	0.89	0.006
Self-reported oral health	− 3.24	0	− 2.96	0	− 2.14	0	− 2.61	0

ISSN: 1472-6831