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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