Skip to main content

Table 1 Detection rate, sensitivity, specificity and positive predictive value of computed tomography (CT) screening sturdies [17]

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

Study

Lung cancer +

Lung cancer -

Total

Results

Sone et al, 1998 [15], Sone, 2000 [18]

 Initial screening in 1996

Detection rate 0.4 %

 CT +

25

305

330

Sensitivity 57 %

 CT -

19

5965

5984

Specificity 95 %

 Total

44

6270

6314

Predictive value 8 %

 First annual repeat in 1997

Detection rate 0.6 %

 CT +

28

169

197

Sensitivity 85 %

 CT -

5

4823

4828

Specificity 97 %

 Total

33

4992

5025

Predictive value 14 %

 Second annual repeat in 1998

Detection rate 0.2 %

 CT +

9

164

173

Sensitivity 100 %

 CT -

0

4867

4867

Specificity 97 %

 Total

9

5031

5040

Predictive value 5 %

Henschke et al, 1999 [19]

 Initial screening

Detection rate 2.7 %

 CT +

27

206

233

Sensitivity 100 %

 CT -

0

767

767

Specificity 79 %

 Total

27

973

1000

Predictive value 12 %

 First annual repeat

Detection rate 0.6 %

 CT +

6

24

30

Sensitivity 100 %

 CT -

0

970

970

Specificity 98 %

 Total

6

994

1000

Predictive value 20 %

Vehmas et al, 2000 [20]

 Initial screening

Detection rate 0.8 %

 CT +

5

60

65

Sensitivity 100 %

 CT -

0

537

537

Specificity 90 %

 Total

5

597

602

Predictive value 8 %

  1. CT+ means the lung cancer was detected by CT
  2. CT- means the lung cancer was not detected by CT
  3. Lung Cancer + means the lung cancer was diagnosed by biopsy
  4. Lung Cancer- means the lung cancer was not diagnosed by biopsy