Model coefficient, 95% confidence interval and p-value for the Interrupted Time-Series Regression Analysis for the assessment of the impact of the enhanced surveillance system, Morocco, 1996–2009.

*the slope coefficient represent the expected average increase of number of samples in each consecutive year during the pre-intervention period (1996–2006).**the slope coefficient represent the expected average increase of number of samples in each consecutive year during the post intervention period (2007–2009).