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Table 1 Model results for the effect of the FMG reform on visits to the ED among diabetic patients (avoidable and appendicitis)

From: Effect of family medicine groups on visits to the emergency department among diabetic patients in Quebec between 2000 and 2011: a population-based segmented regression analysis

Outcome Intercept (β0) Baseline trend (β1) Level change (β2) Change in trend (β3) Post-reform trend (β1 + β3)
Number of visits per 10,000 diabetic patients at baseline Trend in the number of visits per 10,000 diabetic patients per week before the reform Level change in the number of visits per 10,000 diabetic patients immediately following the reform Trend change in the number of visits per 10,000 diabetic patients per week following the reform Trend in the number of visits per 10,000 diabetic patients per week after the reform
  (95 % CI) (95 % CI) (95 % CI) (95 % CI)
Avoidable visits (urban areas) 9.49 0.99 (0.99, 1.00) 1.04 (0.98, 1.10) 0.99 (0.99, 1.00) 0.99 (0.98, 0.99)
p = 0.07 p = 0.11 p = 0.10 p < 0.05
Avoidable visits (rural areas) 10.31 0.99 (0.99, 1.00) 1.12 (1.04, 1.20) 0.99 (0.99, 1.00) 0.99 (0.98, 0.99)
p = 0.78 p < 0.05 p = 0.21 p < 0.05
Appendicitis 0.66 1.00 (0.99, 1.01) 0.97 (−0.84, 1.12) 1.00 (0.99, 1.00) 1.00 (0.99, 1.01)
p = 0.29 p = 0.72 p = 0.81 p = 0.28
  1. Estimates are conveyed as rate ratios
  2. Final models included: time, FMG reform, post-FMG variable, dummy variables for seasonal quarter, and dummy variables for fiscal year