Skip to main content

Advertisement

Table 3 Effect of risk-adjustment approach on standardized mortality/morbidity ratio chart. a) Number of clinics with observed-expected ratio > 1. b) Cumulative absolute distances of observed-expected ratio of all clinics to the standard value 1

From: Comparison of three different methods for risk adjustment in neonatal medicine

  Raw values Indirect standardization Logistic regression Multilevel
Outcome a) SMR values above 1
Mortality 3 3 3 3
In hosp. Mortality 3 3 3 3
Late onset sepsis 4 2 2 2
NECa 3 4 3 3
sIVHb 5 5 6 6
BPDc 4 4 4 4
sROPd 2 2 1 2
  b) Cumulative absolute distances to 1
Mortality 2.8 2.7 3.0 3.0
In hosp. Mortality 3.0 3.2 3.1 3.0
Late onset sepsis 2.7 3.0 3.0 3.1
NEC 3.4 3.4 3.6 3.6
sIVH 2.2 2.3 2.4 2.4
BPD 4.1 3.2 3.8 3.8
sROP 5.7 5.4 5.4 5.5
Total 23.9 23.2 24.3 24.4
  1. a NEC Necrotizing enterocolitis
  2. b sIVH intra−/periventricular haemorrhage grade 3–4
  3. c BPD bronchopulmonary dysplasia
  4. d sROP retinopathy of prematurity grade 3 and above