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Table 6 Effects of primary care doctor choice on monthly consultation and health service utilization rates

From: Having a family doctor was associated with lower utilization of hospital-based health services

   RFD vs NRD† RFD vs ORD† ORD vs NRD† Other significant independent variables (p < 0.05)‡
Overall significance Coefficient (95% C.I.)  
Negative Binomial Regression Results
Monthly consultation rate <0.001 *0.473 0.046 *0.427 Seasonality, sex, general health, chronic disease, drinking, occupation, educational level, district
  (0.332,0.614) (−0.098,0.191) (0.273,0.581)
Poisson Regression Results
Monthly emergency service visit rate 0.158 0.253 −0.099 0.352 Seasonality, sex, age, general health, long-term medication, occupation, household monthly income, educational level, district
  (−0.140,0.647) (−0.490,0.292) (−0.038,0.742)
Monthly hospital admission rate 0.360 −0.047 −0.253 0.206 Seasonality
  (−0.764,0.670) (−1.013,0.507) (−0.553,0.965)
  1. Notes: RFD = Regular family doctor group; ORD = Other regular doctor group; NRD = No regular doctor group.
  2. *Statistically significant (p < 0.05) difference.
  3. †as reference category in Poisson/Negative Binomial regression , +ve: positive relationship, −ve: negative relationship.
  4. ‡Seasonality with phase I data coded as Summer and phase 2 data coded as Winter was entered as a covariate, and adjustment for confounding factors including socio-demographics, health status, chronic morbidity and lifestyle (Additional file 1).