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Table 2 Characteristics of risk scores development and validation studies for contrast-induced acute kidney injury

From: Validation of pre-operative risk scores of contrast-induced acute kidney injury in a Chinese cohort

Scores

Study population

No. of centers

No. of developing patients

Incidence of CI-AKI (%)

Model Discrimination

No. of validation patients

Incidence of CI-AKI (%) in validation

Model Discrimination in validation

Maioli

patients undergoing coronary angiography or PCI

single

1218

9.4

C-statistic = 0.85

502

10.8

C-statistic = 0.82

Chen

patients undergoing PCI

single

1500

16.4

C-statistic = 0.82

1000

17.2

C-statistic = 0.82

Liu

patients with coronary chronic total occlusion who underwent PCI

single

495

3.0

C-statistic =0.789

233

not reported

C-statistic =0.864

Lian

patients aged > 65 years and who had undergone CAG

single

759

6.3

C-statistic =0.727

527

6.6

C-statistic =0.695

Lin

patients who underwent coronary angiography or PCI if they were diagnosed with STEMI and presented quite high risk in those with NSTE-ACS

single

461

6.9

not reported

231

9.9

C-statistic =0.832

Ghani

patients undergoing PCI

single

247

5.52

not reported

100

5.0

C-statistic =0.61

Inohara

patients undergoing PCI

multi-center

3957

9

not reported

1979

not reported

0.799

Zeng

patients who had been diagnosed with diabetes and underwent CAG/PCI

single

771

3.9

not reported

386

3.9

C-statistic = 0.813

  1. CI-AKI Contrast-induced acute kidney injury, PCI Percutaneous coronary intervention, STEMI ST-segment elevation myocardial infarction, NSTE-ACS Non-ST-segment elevation acute coronary syndrome, CAG Elective coronary angiography, AMI Acute myocardial infarction