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Table 3 Prevalence of abnormal radiograph, PF, BP and ECG in coal miners in 2016

From: Effects of occupational exposure to dust on chest radiograph, pulmonary function, blood pressure and electrocardiogram among coal miners in an eastern province, China

Variable Radiograph n(%) PF n(%) BP n(%) ECG n(%)
Sex
 Female 42 (3.2) 61 (4.6) 199 (15.1) 191 (14.5)
 Male 465 (4.1) 594 (5.3) 1806 (16.0) 1732 (15.4)
Age, years
 ≤ 30 9 (0.6) 25 (1.7) 178 (11.8) 110 (7.3)
 31–40 127 (4.5) 84 (3.0) 579 (20.7) 413 (14.8)
 41–50 232 (4.6) 311 (6.2) 815 (16.2) 841 (16.7)
 > 50 139 (4.3) 235 (7.2) 433 (13.3) 559 (17.1)
Years of dust exposure
 ≤ 10 158 (2.8) 132 (2.3) 778 (13.8) 801 (14.2)
 11–20 101 (4.5) 147 (6.6) 556 (25.0) 329 (14.8)
 > 20 248 (5.2) 376 (7.9) 671 (14.2) 793 (16.7)
Smoking
 No 206 (3.4) 206 (3.4) 1177 (19.5) 816 (13.5)
 Yes 301 (4.6) 449 (6.8) 828 (12.6) 1107 (16.9)
Drinking
 No 62 (1.8) 114 (3.3) 438 (12.8) 391 (11.4)
 Yes 445 (4.9) 541 (5.9) 1567 (17.1) 1532 (16.7)
Working types
 Ground auxiliary 207 (3.1) 323 (4.8) 758 (11.2) 867 (12.8)
 Tunneling 31 (2.0) 39 (2.6) 310 (20.5) 209 (13.8)
 Coal extraction 51 (6.4) 85 (10.7) 175 (22.0) 128 (16.1)
 Pulverized coal 117 (7.4) 71 (4.5) 283 (17.9) 416 (26.2)
 Underground auxiliary 101 (5.2) 137 (7.1) 479 (24.7) 303 (15.6)
Size of mine
 Large 331 (4.3) 423 (5.5) 911 (11.9) 1200 (15.6)
 Medium 90 (3.9) 117 (5.1) 493 (21.4) 326 (14.1)
 Small 86 (3.3) 115 (4.4) 601 (23.0) 397 (15.2)
  1. PF Pulmonary function, BP Blood pressure, ECG Electrocardiogram