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Table 2 Sensitivity, specificity, positive and negative predictive values and Kappa statistic of hospital data comorbidity as compared to study data. Conditions are ordered by prevalence

From: Do routine hospital data accurately record comorbidity in advanced kidney disease populations? A record linkage cohort study

Comorbidity

Sensitivity (95% CI)

Specificity (95% CI)

PPV (%)

(95% CI)

NPV (%)

(95% CI)

Kappa

Diabetes (n = 5461)

97.7 (96.8–98.4)

96.1 (95.4–96.7)

90.4 (88.9–91.8)

99.1 (98.7–99.4)

0.91

Ischaemic heart disease (n = 5450)

82.6 (79.6–85.4)

93.4 (92.7–94.1)

82.9 (77.3–87.6)

90.2 (89.4–91.0)

0.68

Malignancy (n = 5453)

62.8 (58.3–67.2)

97.7 (97.2–98.1)

71.9 (67.3–76.2)

96.5 (96.0–97.0)

0.64

Chronic lung disease (n = 5450)

86.0 (82.3–89.2)

90.4 (89.5–91.2)

41.9 (38.6–45.4)

98.8 (98.4–99.1)

0.52

Cerebrovascular disease (n = 5448)

56.6 (51.2–61.9)

96.7 (96.2–97.2)

53.6 (48.3–58.9)

97.1 (96.6–97.5)

0.52

Mental illness (n = 5451)

55.1 (49.7–60.5)

94.0 (93.3–94.7)

38.1 (33.8–42.6)

96.9 (96.4–97.5)

0.41

Peripheral vascular disease (n = 5452)

67.2 (61.5–72.6)

95.8 (95.2–96.3)

47.7 (42.8–52.6)

98.1 (97.7–98.5)

0.53

Heart failure (n = 5450)

68.4 (61.3–75.0)

91.4 (90.6–92.1)

22.3 (18.9–25.9)

98.8 (98.4–99.1)

0.30

Blood borne viruses (n = 5450)

15.5 (10.2–22.2)

100 (99.9–100)

96.0 (79.6–99.9)

97.6 (97.1–98.0)

0.26

Liver disease (n = 5452)

44.2 (34.0–54.8)

98.0 (97.6–98.4)

28.4 (21.3–36.4)

99.0 (98.7–99.3)

0.33

Heart valve replacement (n = 5448)

92.6 (82.1–97.9)

99.5 (99.3–99.7)

65.8 (54.0–76.3)

99.9 (99.8–100)

0.77

Permanent pacemaker (n = 5449)

84.9 (72.4–93.3)

98.6 (98.3–98.9)

37.5 (28.8–46.8)

99.8 (99.7–99.9)

0.51

Abdominal aortic aneurysm (n = 5447)

29.5 (16.8–45.2)

99.9 (99.7–99.9)

61.9 (38.4–81.9)

99.4 (99.2–99.6)

0.40

Dementia (n = 5453)

44.4 (13.7–78.8)

99.9 (99.7–99.9)

36.4 (10.9–69.2)

99.9 (99.8–100)

0.40

  1. Abbreviations: PPV Positive predictive value, NPV Negative predictive value