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. 2019 Dec 31;21(3):425–436. doi: 10.1007/s10198-019-01145-z

Table 5.

Logistic regression with patient fixed effects for age group 18+

Intervention Odds ratio during vs. before reform [95% CI] Associated percentage change (%) Observations
Prev. exams and oral hygiene advice 0.847 [0.844; 0.850] − 4.14 7,171,833
Scaling and polishing 1.019 [1.016; 1.023] 0.48 5,781,013
Any preventive service 0.873 [0.870; 0.876] − 3.39 6,693,394
Direct restorations 0.921 [0.918; 0.924] − 2.06 6,095,415
Extractions 1.075 [1.065; 1.085] 1.80 1,287,825
Radiographs 0.887 [0.884; 0.890] − 3.00 6,102,535

Dependent variable: dummy variable for each treatment session of patient i at time t indicating whether it includes at least one procedure of the particular service basket or not. Model includes patient-level fixed effects. Confidence intervals are denoted in brackets