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Table 5 Comparison of observed post-operative mortality with GAS in the 3 largest studies

From: Pre-operative risk scores for the prediction of outcome in elderly people who require emergency surgery

GAS/Postoperative Mortality Rate by Age (years)

Korhonen41

n = 836

Samy12

n = 500

Samy40

n = 320

< 73

17%

< 70

6%

< 70

0%

74 – 82

35%

70 – 75

6%

70 – 75

2%

83 – 89

46%

76 – 85

16%

76 – 85

7%

90 – 97

61%

> 85

35%

86 – 95

36%

> 98

76%

  

> 95

80%