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Table 5 Comparison of scores in high-risk and low-risk patients

From: Prediction of mortality in secondary peritonitis: a prospective study comparing p-POSSUM, Mannheim Peritonitis Index, and Jabalpur Peritonitis Index

Score

Cutoff score

Total positives (high risk)

True positives (died)

True negatives (low risk)

False positives (high risk but survived))

False negatives (low risk but died)

p-POSSUM

29.1%

139 (59.1%)

57 (24%)

88 (37%)

82 (35%)

8 (3%)

MPI

27

127 (54.0%)

55 (23%)

98 (42%)

72 (31%)

10 (4%)

JPI

6

173 (73.6%)

61 (26%)

58 (25%)

112 (48%)

4 (2%)