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Table 3 Distribution of independent variables: hospital level indicators of quality and patient safety

From: Is the maturity of hospitals' quality improvement systems associated with measures of quality and patient safety?

 

Descriptive statistic

Indicator

Mean (SD)

Min-max

Inter-quartile range

Adjusted hospital mortality index*

1.03 (0.51)

0.55-3.72

0.79-1.03

Adjusted hospital complications index

0.94 (0.27)

0.02-1.94

0.84-1.01

Adjusted hospital readmissions index

1.02 (0.20)

0.13-1.28

0.93-1.14

Adjusted hospital length of stay index*

1.01 (0.28)

0.75-2.50

0.86-1.04

  1. *Distribution not normal (Kolmogorov-Smirnov test for normality: p < 0.05)