Table 1

Mean hospital score during study period

Year	Lower confidence	Mean*	Median	Upper confidence
2005	71.1	74.2^b	75.7	77.4
2006	74.9	77.8^ab	79.6	80.7
2007	78.5	81.2^a	83.5	83.9

*Means with the same letters are not significantly different.