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Table 3 Nontuberculous mycobacteria (NTM)-related laboratory test rate according to hospital type

From: Clinically refined epidemiology of nontuberculous mycobacterial pulmonary disease in South Korea: overestimation when relying only on diagnostic codes

Hospital type

No. of patients

No. of hospitals

AFB smear (%)

AFB culture (%)

NTM identification (%)

DST (%)

Tertiary hospital

26,772

54

78.2 (69.6, 82.0, 88.3)

85.0 (81.6, 84.9, 89.3)

62.4 (53.1, 61.2, 68.3)

42.8 (25.1, 39.6, 53.1)

Secondary hospital

16,119

288

75.8 (69.4, 85.0, 100)

83.2 (75.0, 87.4, 100)

55.6 (41.3, 60.0, 75.0)

38.2 (16.6, 37.5, 56.3)

Hospital

909

169

87.6 (90.0, 100, 100)

85.8 (90.0, 100, 100)

49.0 (0.0, 58.6, 100.0)

37.1 (0.0, 33.3, 100)

Nursing hospital

72

65

83.3 (100, 100, 100)

95.8 (100, 100, 100)

43.1 (0, 0, 100)

20.8 (0, 0, 0)

Clinic

1315

177

69.3 (85.7, 100, 100)

82.9 (97.8, 100, 100)

43.7 (0.0, 55.3, 100)

22.5 (0, 10.0, 100.0)

Public health center

134

58

73.1 (50.0, 100, 100)

82.8 (76.2, 100, 100)

38.8 (0, 43.2, 66.7)

26.9 (0, 0, 44.5)

Total

45,321

778

77.2

84.3

59.1

40.4

  1. AFB, acid-fast bacilli; DST, drug susceptibility test
  2. The values in parentheses are the median and quantiles of the test rates for each hospital