From: Characteristics of pneumoconiosis in Zhejiang Province, China from 2006 to 2020: a descriptive study
Characteristics | Pneumoconiosis cases, n (%) | Diagnosis age, year | Exposure duration, year |
---|---|---|---|
Total | 6037 (100.00%) | 55.44 ± 10.14 | 11.00 (6.50, 18.00) |
Gender | |||
Male | 5865 (97.15%) | 55.30 ± 10.07 | 11.00 (6.42, 18.00) |
Female | 172 (2.85%) | 60.19 ± 11.30 | 12.04 (9.25, 20.00) |
P value | - | < 0.001 | 0.003 |
Category | |||
Silicosis | 4357 (72.17%) | 55.43 ± 9.82 | 11.00 (6.25, 18.50) |
CWP | 992 (16.43%) | 59.58 ± 9.10 | 12.00 (8.00, 18.00) |
Welders’ pneumoconiosis | 294 (4.87%) | 43.31 ± 7.22 | 9.00 (6.00, 12.08) |
Others | 394 (6.53%) | 54.28 ± 10.41 | 10.33 (6.60, 16.54) |
P value | - | < 0.001 | < 0.001 |
Stage | |||
Stage I | 3349 (55.47%) | 54.99 ± 10.83 | 10.67 (6.00, 18.25) |
Stage II | 1294 (21.43%) | 55.20 ± 9.54 | 11.08 (6.92, 18.00) |
Stage III | 1394 (23.09%) | 56.75 ± 8.78 | 11.75 (7.92, 17.42) |
P value | - | < 0.001 | 0.011 |
First year of dust exposure | |||
<1980 | 2354 (38.99%) | 63.10 ± 7.82 | 13.00 (7.00, 20.56) |
1980- | 1164 (19.28%) | 54.81 ± 7.41 | 15.00 (10.00, 20.27) |
1990- | 927 (15.36%) | 50.04 ± 8.14 | 13.33 (9.00, 18.29) |
2000- | 1262 (20.90%) | 47.55 ± 7.70 | 8.33 (5.58, 11.00) |
2010- | 330 (5.47%) | 48.40 ± 6.99 | 4.25 (2.92, 6.00) |
P value | - | < 0.001 | < 0.001 |
Industry type | |||
Mining industry | 2241 (37.12%) | 55.63 ± 9.17 | 13.17 (8.00, 20.08) |
Manufacturing industry | 1878 (31.11%) | 49.73 ± 9.50 | 10.00 (6.08, 15.17) |
Construction industry | 162 (2.68%) | 54.39 ± 9.54 | 10.00 (5.08, 18.50) |
Traffic, storage and mail business | 127(2.10%) | 63.20 ± 10.39 | 8.67 (4.00, 29.13) |
Neighborhood services and other service industry | 74 (1.23%) | 63.28 ± 7.02 | 11.08 (8.08, 14.08) |
Public administration and social organization | 1445 (23.94%) | 61.19 ± 7.74 | 10.92 (6.00, 17.67) |
Others | 110 (1.82%) | 61.02 ± 13.34 | 6.45 (3.50, 10.56) |
P value | - | < 0.001 | < 0.001 |
Enterprise scale | |||
Large | 332 (5.50%) | 57.97 ± 13.50 | 17.75 (9.06, 25.85) |
Medium | 840 (13.92%) | 51.73 ± 10.55 | 11.25 (6.67, 19.79) |
Small | 4332 (71.75%) | 55.91 ± 9.56 | 11.00 (6.67, 17.00) |
Micro | 25 (0.41%) | 49.70 ± 8.79 | 7.73 (3.58, 9.08) |
Unknown | 508 (8.42%) | 56.24 ± 10.27 | 11.25 (4.92, 18.94) |
P value | - | < 0.001 | < 0.001 |