Table 2 Risk of non-tuberculosis mycobacterial pulmonary disease according to the severity of underweight.

From: Severity of underweight affects the development of nontuberculous mycobacterial pulmonary disease; a nationwide longitudinal study

 

N

Events (n)

Incidence ratea

Model 1 (HRs, 95% CI)

Model 2 (HRs, 95% CI)

Model 3 (HRs, 95% CI)

Body mass index

 < 16.0 kg/m2

16,238

122

0.842

5.22 (4.36, 6.25)

5.37 (4.48, 6.43)

4.35 (3.63, 5.21)

16.0–16.99 kg/m2

53,838

237

0.454

3.83 (3.36, 4.36)

3.95 (3.47, 4.50)

3.50 (3.07, 3.99)

17.0–18.49 kg/m2

304,869

775

0.255

2.47 (2.29, 2.66)

2.53 (2.34, 2.73)

2.34 (2.17, 2.52)

18.5–22.99 kg/m2

3,957,584

5089

0.127

1 (ref.)

1 (ref.)

1 (ref.)

P for trendb

   

 < 0.0001

 < 0.0001

 < 0.0001

  1. Model 1, adjusted for age and sex; Model 2, model 1 + smoking, alcohol intake, and regular exercise; Model 3, model 2 + respiratory diseases, solid cancer, hematologic malignancy, transplantation, AIDS, GERD, connective tissue diseases, diabetes mellitus.
  2. aPer 1000 person-years.
  3. HRs hazards ratios, 95% CI 95% confidence interval.
  4. bP-values for the trend were < 0.0001 for all variables because of the large size of the study population.
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