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Table 1 Demographic data and clinical characteristics of surviving patients and deceased patients

From: Survival analysis of patients with pneumoconiosis followed in occupational medicine clinics: 10 years experience

Characteristic

Surviving patients

Mean (±) or Median [IQR] value

Deceased patients

Mean (±) or Median [IQR] value

Age at first diagnosis (years)

42 [10]

45 [20]

Total exposure time (years)

16 [11]

15.5 [11.8]

 

Surviving patients

n (%)

Deceased patients

n (%)

Gender

  

Male

Female

523 (94.7)

2 (0.4)

14 (2.5)

0

Smoking status

  

Never smokers

Former and current smokers

145 (27.6)

380 (72.4)

3 (21.4)

11 (78.6)

Comorbidity

  

Yes

No

150 (27.8)

375 (69.6)

7 (1.3)

7 (1.3)

Attributed Sector

  

Ceramic production

Dental technician

Coal mine

Quartz mine

Metal welding-casting

Metal mine

Brick production

Other

132 (24.5)

117 (21.7)

88 (16.3)

79 (14.6)

51 (9.5)

12 (2.3)

5 (0.9)

41 (7.6)

0 (0)

4 (0.7)

3 (0.6)

3 (0.6)

1 (0.1)

1 (0.1)

0 (0)

2 (0.4)

Workplace size

  

Large

Medium

Small

Micro

277 (51.4)

67 (12.4)

24 (4.4)

15 (2.8)

3 (0.5)

1 (0.2)

2 (0.4)

0 (0)

Type of Dust

  

Silica

Metal dust

Coal dust

Asbestos

Other

474 (87.9)

112 (20.7)

91 (16.8)

11 (2)

38 (7)

9 (1.7)

5 (1)

3 (0.6)

0 (0)

2 (0.4)

Type of Disease

  

Silicosis

Mix dust pneumoconiosis

Coal worker pneumoconiosis

Asbestosis

Other

355 (65.8)

138 (25.6)

18 (3.3)

1 (0.2)

13 (2.4)

8 (1.5)

3 (0.6)

3 (0.6)

0 (0)

0 (0)

Stage

  

Stage 0

Stage 1

Stage 2

Stage 3

41 (7.6)

350 (64.9)

119 (22)

15 (2.8)

1 (0.2)

9 (1.7)

2 (0.4)

2 (0.4)

Variety

  

Simple pneumoconiosis

Complicated pneumoconiosis

403 (74.7)

122 (22.6)

6 (1.2)

8 (1.5)

Developed lung cancer

  

Yes

2 (0.4)

1 (0.2)

History of tuberculosis

  

No

Yes

Non-tuberculosis mycobacteria

412 (76.4)

112 (20.7)

1 (0.3)

7 (1.3)

7 (1.3)

0 (0)

Use of personal protective equipment

  

Yes

No

370 (68.6)

162 (28.8)

7 (1.3)

7 (1.3)

  1. Note: *Data presented as mean ± SD if normally distributed and median refers to Interquartile Range if not normally distributed. Categorical variables are presented as number (percentages of total). Column percentages are presented