Table 2—

Risk factors for relapsing in 75 patients withMycobacterium kansasii lung disease

VariableRelapseNonrelapsep-value
Patients n570
Age yrs55±4.948.9±1.60.33
Sex male4 (80.0)64 (91.4)0.40
Comorbidities#
 Any5 (100)49 (70.0)0.18
 0021 (30.0)0.18
 11 (20.0)18 (25.7)0.63
 >14 (80.0)31 (44.3)0.14
Duration of treatment months mean (IQR)
 Rifampin12.0 (1.0)12.5 (1.0)0.76
 Isoniazid12.0 (1.0)12.5 (1.0)0.94
 Ethambutol12.0 (0.0)11.9 (0.0)0.64
 Streptomycin2.0 (1.8)2.0 (1.0)0.10
Chest radiograph
 Cavitation3 (60.0)49 (70.0)0.49
 Bilateral involvement2 (40.0)17 (24.3)0.37
Positive sputum smear046 (65.7)0.007
Good treatment compliance5 (100)64 (91.4)0.51
  • Data are presented as n (%) or mean±sd, unless otherwise stated. IQR: interquartile range. #: including chronic obstructive pulmonary disease, alcohol abuse, diabetes mellitus, chronic liver disease, immunosuppressive therapy, malignancy, gastrectomy and chronic pancreatitis.