Table 1

Interrupted time series regression model. Dependent variable: monthly acute coronary syndromes admission rates (2004–2008)

VariableCoefficientp value95% CI
Sante Fe
Pre-intervention trend (admissions per 100 000 per month)−0.030.463−0.11 to 0.05
Post-intervention trend (admissions per 100 000 per month)−0.26<0.001−0.39 to −0.13
Immediate change after intervention (admissions per 100 000)−2.500.029−4.74 to −0.27
Buenos Aires
Pre-intervention trend (admissions per 100 000 per month)−0.060.138−0.14 to 0.02
Post-intervention trend (admissions per 100 000 per month)0.010.893−0.12 to 0.14
Immediate change after intervention (admissions per 100 000)1.740.279−1.43 to 4.92
Difference in baseline rate between Santa Fe and Buenos Aires (admissions per 100 000)−1.520.227−4.02 to 0.97
Baseline rate for Buenos Aires (admissions per 100 000)20.80<0.00119.06 to 22.55
  • Note: Month indicator effects are not shown.