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Table 4 Stage distribution for patients in the study (all patients dived between intervention and controls), and only for patients for whom the GP was involved in the diagnosis

From: The effect of direct access to CT scan in early lung cancer detection: an unblinded, cluster-randomised trial

 

All patients

Controls, all

Intervention, all

P-value

Controls, involved

Intervention, involved

p-value

 

n

(%)

n

(%)

n

(%)

 

n

(%)

n

(%)

 

Stage IA

46

(13.9)

19

(11.9)

27

(15.8)

 

4

(4.9)

11

(11.3)

 

Stage IB

33

(10.0)

18

(11.3)

15

(8.8)

 

8

(9.8)

8

(8.3)

 

Stage IIA

14

(4.2)

3

(1.9)

3

(1.8)

 

3

(3.7)

3

(3.1)

 

Stage IIB

22

(6.6)

11

(6.9)

11

(6.4)

 

7

(8.5)

7

(7.2)

 

Stage IIIA

22

(6.6)

9

(5.5)

13

(7.6)

 

5

(6.1)

6

(6.2)

 

Stage IIIB

24

(7.3)

12

(7.5)

12

(7.0)

 

7

(8.5)

9

(9.3)

 

Stage IV

170

(51.4)

88

(55.0)

90

(52.6)

0.586a

48

(58.5)

53

(54.6)

0.470a

Localised (IA-IIIA)

137

(41.4)

60

(37.5)

69

(40.4)

0.595b

27

(32.9)

35

(36.1)

0.658b

Metastatic (IIIB-IV)

194

(58.6)

100

(62.5)

102

(59.6)

 

55

(67.1)

62

(63.9)

 
  1. aDifferences between groups were tested by Wilcoxon test.bDifferences between groups were tested by Pearsons χ2 test