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Table 3 Characteristics of study group and matched control group

From: Clinical course of nontuberculous mycobacterial pulmonary disease in patients with rheumatoid arthritis

 

RA (+) NTM-PD (N = 18)

RA (-) NTM-PD (N = 90)

P-value

Age, years, median (IQR)

68 (59–73)

68 (60–73)

0.830

Female, N (%)

16 (88.9)

80 (88.9)

> 0.999

Body mass index, median (IQR)

20.6 (16.2–21.3)

20.0 (18.0–21.0)

0.642

Comorbidities, N (%)

   

 History of tuberculosis

2 (11.1)

336 (40.0)

0.028

 Diabetes

3 (16.7)

5 (5.6)

0.127

 Chronic obstructive pulmonary disease

0

4 (4.4)

0.999

 Malignancy

0

11 (12.2)

0.205

Presence of cavity, N (%)

6 (33.3)

30 (33.3)

> 0.999

AFB smear positivity, N (%)

4 (22.2)

23 (25.6)

> 0.999

M. avium complex, N (%)

16 (88.9)

77 (85.6)

> 0.999

Administration of anti-mycobacterial treatment, N (%)

10 (55.6%)

50 (55.6)

> 0.999

Microbiological cure, N (%)

5/10 (50.0%)

26/50 (53.1%)

> 0.999

  1. AFB, acid fast bacilli; IQR, interquartile range; NTM-PD, nontuberculous mycobacterial pulmonary disease; RA, rheumatoid arthritis