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Table 4 Univariable and multivariable analysis of risk factors for DR-TB in underweight TB cases

From: Association between body mass index and newly diagnosed drug-resistant pulmonary tuberculosis in Shandong, China from 2004 to 2019

Characteristics Non-DR n = 1734 (%) DR-TB n = 387 (%) Univariable analysis Multivariable analysis
OR (95% CI) P value OR (95% CI) P value
Age (years) (n = 1725/n = 385)       
0–14 9 (0.52%) 2 (0.52%) 0.963 (0.203–4.557) 0.962 1.022 (0.213–4.898) 0.978
15–24 299 (17.33%) 69 (17.92%) Reference Reference Reference Reference
25–44 322 (18.67%) 71 (18.44%) 0.955 (0.662–1.379) 0.808 0.984 (0.68–1.424) 0.932
45–64 479 (27.77%) 128 (33.25%) 1.158 (0.835–1.605) 0.379 1.138 (0.813–1.594) 0.45
 > 65 616 (35.71%) 115 (29.87%) 0.809 (0.582–1.124) 0.206 0.789 (0.561–1.109) 0.173
Sex (n = 1734/n = 387)       
Female 290 (16.72%) 49 (12.66%) Reference Reference Reference Reference
Male 1444 (83.28%) 338 (87.34%) 1.385 (1.001–1.917) 0.049* 1.458 (1.038–2.048) 0.030*
Cavity (n = 1566/n = 365)       
No 896 (57.22%) 206 (56.44%) Reference Reference Reference Reference
Yes 670 (42.78%) 159 (43.56%) 1.032 (0.82–1.299) 0.787 1.019 (0.807–1.286) 0.875
Smoking (n = 1423/n = 302)       
No 1046 (73.51%) 220 (72.85%) Reference Reference Reference Reference
Yes 377 (26.49%) 82 (27.15%) 0.77 (0.581–1.019) 0.067 1.157 (0.802–1.669) 0.434
Drinking (n = 1407/n = 301)       
No 1108 (78.75%) 245 (81.4%) Reference Reference Reference Reference
Yes 299 (21.25%) 56 (18.6%) 0.841 (0.639–1.107) 0.216 0.686 (0.455–1.033) 0.071
Co-morbidity (n = 1734/n = 387)       
No 1584 (91.35%) 358 (92.51%) Reference Reference Reference Reference
COPD 47 (2.71%) 7 (1.81%) 0.661 (0.297–1.474) 0.312 0.962 (0.32–2.892) 0.944
Diabetes 63 (3.63%) 13 (3.36%) 0.922 (0.502–1.693) 0.793 0.959 (0.517–1.779) 0.895
Hypertension 23 (1.33%) 6 (1.55%) 1.172 (0.474–2.897) 0.732 1.315 (0.522–3.316) 0.561
Other co-morbidity 97 (5.59%) 15 (3.88%) 0.68 (0.391–1.186) 0.174 0.746 (0.347–1.604) 0.454
  1. TB, tuberculosis; DR-TB, drug-resistant tuberculosis; aOR, adjusted odds ratio; OR, odds ratio; COPD, chronic obstructive pulmonary disease
  2. *P < 0.05; Underweight: BMI < 18.5 kg/m2