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Table 4 Target variables and model specifications

From: Physician drug dispensing in Switzerland: association on health care expenditures and utilization

Variable Type Specification
No. of different active agents count data negative binominal
Share of generic drugs binominal variable logit
Drug cost continuous glm, log link, gamma variance
Physician expenditures continuous, peak at zero two-part model
No. of visits gp count negative binominal
No. of visits specialists count negative binominal
Total health care cost continuous glm, log link, gamma variance
  1. Control variables: Age, gender, deductibles, expenditure in previous year, number of hospital visits/stays, 22 pharmaceutical cost groups to indicate illness