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Table 3 Performance characteristics for algorithms for alcoholic hepatitis according to the number of associated conditions a

From: Validation of coding algorithms for the identification of patients hospitalized for alcoholic hepatitis using administrative data

Number of conditions a

Prevalence % (n)

Positive predictive value (PPV) % (95 % CI)

Overall (n = 228)

Confirmed AH (n = 122)

0

11 % (24)

7.4 % (9)

38 % (19–59)

≥1

89 % (204)

93 % (113)

55 % (48–62)

≥2

61 % (139)

65 % (79)

57 % (48–65)

≥3

30 % (68)

34 % (42)

62 % (49–73)

≥4

13 % (29)

19 % (23)

79 % (60–92)

≥5

4 % (9)

5.7 % (7)

78 % (40–97)

  1. a Associated conditions as shown in Table 2. Prevalent cases represent those with an AH diagnosis code plus codes for the associated conditions