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Table 1 Baseline characteristics of 8957 newly diagnosed pulmonary TB patients in Shandong, China, 2004–2019

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

Characteristics

Total (n = 8957)

BMI category (kg/m2)

P value

Normal weight TB cases (n = 6417)

Underweight TB cases (n = 2121)

Overweight TB cases (n = 373)

Obese TB cases (n = 46)

Underweight group vs normal weight group

Overweight group vs normal weight group

Obese group vs normal weight group

Age (years)

        

0–14

25/8920 (0.28%)

12/6392 (0.19%)

11/2110 (0.52%)

1/372 (0.27%)

1/46 (2.17%)

0.011*

0.521

0.089

15–24

1393/8920 (15.62%)

999/6392 (15.63%)

368/2110 (17.44%)

23/372 (6.18%)

3/46 (6.52%)

0.049*

< 0.001***

0.102

25–44

2258/8920 (25.31%)

1725/6392 (26.99%)

393/2110 (18.63%)

124/372 (33.33%)

16/46 (34.78%)

< 0.001***

0.008**

0.236

45–64

2958/8920 (33.16%)

2187/6392 (34.21%)

607/2110 (28.77%)

148/372 (39.78%)

16/46 (34.78%)

< 0.001***

0.028*

0.936

> 65

2286/8920 (25.63%)

1469/6392 (22.98%)

731/2110 (34.64%)

76/372 (20.43%)

10/46 (21.74%)

< 0.001***

0.254

0.842

Sex

        

Female

1522/8957 (16.99%)

1103/6417 (17.19%)

339/2121 (15.98%)

65/373 (17.47%)

15/46 (32.61%)

0.199

0.906

0.006**

Male

7435/8957 (83.01%)

5314/6417 (82.81%)

1782/2121 (84.02%)

308/373 (82.8%)

31/46 (67.39%)

0.199

0.906

0.006**

Cavity

        

No

4501/8013 (56.17%)

3205/5689 (56.34%)

1102/1931 (57.07%)

171/349 (49%)

23/44 (52.27%)

0.575

0.007**

0.588

Yes

3512/8013 (43.83%)

2484/5689 (43.66%)

829/1931 (42.93%)

178/349 (51%)

21/44 (47.73%)

0.575

0.007**

0.588

Smoking

        

No

5400/7224 (74.75%)

3847/5137 (74.89%)

1266/1725 (73.39%)

261/328 (79.57%)

26/34 (76.47%)

0.217

0.057

0.832

Yes

1824/7224 (25.25%)

1290/5137 (25.11%)

459/1725 (26.61%)

67/328 (20.43%)

8/34 (23.53%)

0.217

0.057

0.832

Drinking

        

No

5663/7174 (78.94%)

4015/5013 (80.09%)

1353/1708 (79.22%)

266/329 (80.85%)

29/34 (85.29%)

0.435

0.738

0.449

Yes

1511/7174 (21.06%)

1088/5013 (21.7%)

355/1708 (20.78%)

63/329 (19.15%)

5/34 (14.71%)

0.435

0.738

0.449

Co-morbidity

        

Total

941/8957 (10.95%)

678/6417 (10.57%)

179/2121 (8.44%)

73/373 (19.57%)

11/46 (23.91%)

0.005**

< 0.001***

0.003**

Asthma

44/8957 (0.51%)

24/6417 (0.37%)

18/2121 (0.85%)

2/373 (0.54%)

0/46 (0.00%)

0.007**

0.652

1.000

COPD

181/8957 (2.11%)

114/6417 (1.78%)

54/2121 (2.55%)

12/373 (3.22%)

1/46 (2.17%)

0.027**

0.045*

0.563

Bronchiectasis

35/8957 (0.41%)

24/6417 (0.37%)

11/2121 (0.52%)

0/373 (0.00%)

0/46 (0%)

0.366

0.640

1.000

Silicosis

27/8957 (0.31%)

24/6417 (0.37%)

3/2121 (0.14%)

0/373 (0.00%)

0/46 (0.00%)

0.119

0.640

1.000

Diabetes

588/8957 (6.84%)

451/6417 (7.03%)

76/2121 (3.58%)

52/373 (13.94%)

9/46 (19.57%)

< 0.001***

< 0.001***

< 0.001***

Hypertension

162/8957 (1.88%)

117/6417 (1.82%)

29/2121 (1.37%)

14/373 (3.75%)

2/46 (4.35%)

0.160

0.017*

0.207

Cancer

19/8957 (0.22%)

10/6417 (0.16%)

6/2121 (0.28%)

3/373 (0.8%)

0/46 (0%)

0.241

0.031*

1.000

HIV/AIDS or other immunocompromised diseases

7/8957 (0.08%)

5/6417 (0.08%)

2/2121 (0.09%)

0/373 (0%)

0/46 (0%)

0.687

1.000

1.000

  1. TB, tuberculosis; BMI, body mass index; COPD, chronic obstructive pulmonary disease; HIV/AIDS, human immunodeficiency virus/acquired immune deficiency syndrome
  2. *P < 0.05;**P < 0.01;***P < 0.001;
  3. Underweight: BMI < 18.5 kg/m2; Normal weight: 18.5 kg/m2 ≥ BMI ≤ 24.9 kg/m2; Overweight: 25 kg/m2 ≥ BMI ≤ 29.9 kg/m2; obese: BMI ≥ 30 kg/m2