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Table 2 Prevalence of abnormal radiograph, PF, BP and ECG in coal miners in 2015

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

12 (1.2)

95 (9.2)

128 (12.4)

179 (17.4)

 Male

228 (2.3)

1026 (10.2)

3091 (30.8)

2297 (22.9)

Age, years

 ≤ 30

17 (1.2)

136 (9.5)

191 (13.4)

295 (20.7)

 31–40

18 (0.7)

256 (10.4)

545 (22.1)

494 (20.1)

 41–50

92 (2.3)

357 (8.8)

1243 (30.6)

879 (21.6)

 > 50

113 (3.6)

372 (12.0)

1240 (40.0)

808 (26.0)

Years of dust exposure

 ≤ 10

63 (1.3)

396 (8.4)

1009 (21.4)

957 (20.3)

 11–20

17 (0.7)

158 (6.4)

749 (30.5)

477 (19.5)

 > 20

160 (4.1)

567 (14.5)

1461 (37.5)

1042 (26.7)

Smoking

 No

108 (2.0)

533 (9.8)

1614 (29.7)

1221 (22.5)

 Yes

132 (2.3)

588 (10.4)

1605 (28.5)

1255 (22.3)

Drinking

 No

86 (2.2)

392 (9.9)

1183 (29.9)

886 (22.4)

 Yes

154 (2.2)

729 (10.3)

2036 (28.6)

1590 (22.4)

Working types

 Ground auxiliary

102 (1.8)

382 (6.8)

1611 (28.6)

1022 (18.2)

 Tunneling

28 (1.6)

276 (15.7)

514 (29.3)

472 (26.9)

 Coal extraction

33 (3.6)

135 (14.7)

268 (29.2)

183 (19.9)

 Pulverized coal

42 (2.8)

150 (9.9)

438 (28.8)

492 (32.4)

 Underground auxiliary

35 (2.8)

178 (14.4)

388 (31.4)

307 (24.9)

Size of mine

 Large

165 (2.2)

770 (10.5)

2079 (28.2)

1576 (21.4)

 Medium

57 (2.3)

247 (10.1)

728 (29.8)

556 (22.8)

 Small

18 (1.4)

104 (8.3)

412 (33.0)

344 (27.5)

  1. PF Pulmonary function, BP Blood pressure, ECG Electrocardiogram