Table 3

Logistic regression analysis on factors explaining WTP (willingness to pay) the private fee (EUR 80 or more) in a hypothetical situation which required immediate treatment of a lost filling; middle aged adults living in the capital area in Finland
Reference level Coef. Std.Err. z P > |z| 95% C.I. lower 95% C.I. upper Marg.eff (%)
Explanatory variable, class
Gender, male Female -0.069 0.202 -0.340 0.732 -0.465 0.327 4.960
Basic education, Comprehensive school Matriculation -0.303 0.248 -1.220 0.222 -0.790 0.183 -7.429
Professional training, Vocational qualification, school level University or corresp. school level -0.265 0.365 -0.730 0.468 -0.980 0.450 -6.460
Professional training, Vocational qualification, technical college University or corresp. school level -0.275 0.244 -1.130 0.258 -0.753 0.202 -6.745
Working situation, at work Off work 0.116 0.306 0.380 0.706 -0.485 0.716 2.832
Professional status, entrepreneur Upper clerical employee 0.502 0.351 1.430 0.152 -0.185 1.189 12.488
Professional status, lower clerical employee Upper clerical employee -0.141 0.263 -0.530 0.593 -0.657 0.375 -3.448
Professional status, worker Upper clerical employee -0.246 0.315 -0.780 0.436 -0.863 0.372 -5.990
Professional status, other Upper clerical employee 1.400 0.642 2.180 0.029 0.141 2.659 32.413
Professional status, student Upper clerical employee 0.748 1.148 0.650 0.514 -1.501 2.998 27.013
Yearly income, 10 k-25 k <10 k 0.548 0.493 1.110 0.266 -0.418 1.513 13.547
Yearly income, 25 k-50 k <10 k 1.254 0.514 2.440 0.015 0.247 2.261 30.027
Yearly income, >50 k <10 k 1.893 0.578 3.280 0.001 0.761 3.025 42.957
Previous visit, public Private -1.557 0.281 -5.540 0.000 -2.108 -1.007 4.921
Previous visit, elsewhere Private -0.995 0.190 -5.230 0.000 -1.368 -0.623 4.395
Current need, yes No -1.158 0.654 -1.770 0.076 -2.439 0.123 10.645
Current need, don't know No -1.295 0.375 -3.460 0.001 -2.030 -0.561 6.050
Benefit from reform, yes lot No benefit 0.073 0.315 0.230 0.817 -0.544 0.689 7.789
Benefit from reform, yes little No benefit 0.461 0.210 2.200 0.028 0.050 0.871 5.159
Benefit from reform, don't know No benefit 0.710 0.402 1.770 0.077 -0.078 1.497 17.547
Birth year, 1948 1960 -0.110 0.289 -0.380 0.704 -0.677 0.457 7.066
Birth year, 1954 1960 -0.479 0.275 -1.740 0.082 -1.019 0.061 6.472
Birth year, 1957 1960 0.078 0.273 0.280 0.776 -0.458 0.614 6.758
Previous visit, within 24 months Within last 12 months -0.121 0.266 -0.460 0.648 -0.643 0.400 -2.969
Previous visit, more than 24 months Within last 12 months -0.290 0.372 -0.780 0.436 -1.018 0.439 8.736
Previous visit, more than 60 months Within last 12 months -1.024 0.715 -1.430 0.152 -2.425 0.376 12.506
Same dentist, >0 years 0 0.061 0.296 0.210 0.835 -0.519 0.641 7.246
Constant -0.199 0.616 -0.320 0.747 -1.407 1.009 N/A

Widström and Seppälä

Widström and Seppälä BMC Oral Health 2012 12:35   doi:10.1186/1472-6831-12-35

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