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Table 1 Measurement properties of included indices

From: Measurement properties of comorbidity indices in maternal health research: a systematic review

Study

Year

Design

n

Comorbidity Index

Outcome

C-statistic (95% CI)

Bateman et al. [27]

2013

Retrospective Cohort

854,823

The maternal comorbidity index

Organ injury or death

0.657

(0.647–0.666)

    

The Charlson comorbidity index

Organ injury or death

0.578

(0.570–0.585)

    

The Elixhauser comorbidity Index

Organ injury or death

0.586

(0.575–0.597)

Metcalfe et al. [28]

2015

Retrospective Cohort

5995

The maternal comorbidity index

Organ injury

0.67

(0.58–0.76)

  1. CI Confidence Interval