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Table 12 The durations of exposure and latency, smoking status and pathologic types of compensated lung cancers by the kinds of main carcinogens in KOSHA, Korea (1994-2011)

From: Review of carcinogenicity of asbestos and proposal of approval standards of an occupational cancer caused by asbestos in Korea

Exposed substances (No. of lung cancer)   Exposure duration (years) Latent duration (years) Smoking status No. (%) Type of pathology No. (%)
Asbestos (87) Mean ± S.D.a 20.1 ± 7.3 24.0 ± 7.7 Current-smoker 37(47.4) Adenocarcinoma 34(57.6)
Median 21.0 24.0 Ex-smoker 10(12.8) Squamous cell ca 15(25.4)
Minb-Maxc 2.5-38 7-40 Never smoker 31(39.7) Others 10(17.0)
Crystalline silica (42) Mean ± S.D.a 19.1 ± 7.0 24.4 ± 10.8 Current-smoker 13(37.1) Adenocarcinoma 12(48.0)
Median 18.3 21.5 Ex-smoker 6(17.1) Squamous cell ca 10(40.0)
Minb-Maxc 7-32 7-61 Never smoker 16(45.7) Others 3(12.0)
Cr6+ & welding fume (40) Mean ± S.D.a 20.2 ± 7.2 21.5 ± 7.2 Current-smoker 20(54.1) Adenocarcinoma 12(44.4)
Median 20.0 21 Ex-smoker 3(8.1) Squamous cell ca 11(40.7)
Minb-Maxc 9-41 9-41 Never smoker 14(37.8) Others 4(14.8)
Others (10) Mean ± S.D.a 18.1 ± 4.7 18.6 ± 4.5 Current-smoker 4(40.0) Adenocarcinoma 6(66.7)
Median 16.5 17.0 Ex-smoker 2(20.0) Squamous cell ca 2(22.2)
Minb-Maxc 15-16 15-16 Never smoker 4(40.0) Others 1(11.1)
Single exposure (87) Mean ± S.D.a 19.6 ± 6.7 22.8 ± 8.0 Current-smoker 32(43.8) Adenocarcinoma 22(46.8)
Median 20.0 22.0 Ex-smoker 6(8.2) Squamous cell ca 16(34.0)
Minb-Maxc 2.5-35.0 7-41.0 Never smoker 35(47.9) Others 9(12.3)
Co-exposure (92) Mean ± S.D.a 20.1 ± 7.3 23.6 ± 8.8 Current-smoker 42(48.3) Adenocarcinoma 42(57.5)
Median 20.0 23.0 Ex-smoker 15(17.2) Squamous cell ca 22(30.1)
Minb-Maxc 2.5-41.0 7.0-61.0 Never smoker 30(34.5) Others 9(12.3)
  1. aS.D. is the abbreviation of standard deviation; bMin is minimal value; cMax is maximal value