Figure 2From: Comparison of two alternative study designs in assessment of medicines utilisation in neonates Correlation in the frequency of medicine use between the SES and the PPS on unit level. Correlation between the SES and the PPS for active substances used in more than 1 unit in the SES is shown. Trendline for 99 active ingredients: y = 0.6019x – 0.0053; R2 = 0.8605.Back to article page