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Table 2 Characteristics of the lung cancer patients. All patients, patients from control and intervention GPs, and patients for whom the GP was involved in the diagnosis of the lung cancer

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

  All patients Intervention all Control all P-value Intervention, GP involved Control, GP involved p-value
n (%) n (%) n (%)   n (%) n (%)  
All: n 331   171 (51.7) 160 (48.3)   97 (70.8) 82   
Gender:             
Male 157 (47.4) 91 (53.2) 66 (41.3) 0.029a 46 (47.4) 40 (48.8) 0.459a
Female 174 (52.6) 80 (46.8) 94 (58.7)   51 (52.6) 42 (51.2)  
Age:             
Mean (95%CI) 69.4 (68.4–70.5) 69.6 (68.1–70.5) 69.3 (67.7–70.8) 0.799a 69.8 (67.8–71.7) 68.3 (66.2–70.4) 0.830b
Range   40–97 yrs.   40–97 yrs.   44–86 yrs.    45–89 yrs.   44–86 yrs.  
40–59 yrs 61 (18.4) 33 (19.3) 28 (17.5) 0.904b 19 (47.5) 16 (19.5) 0.440c
60–79 yrs 222 (67.0) 111 (64.9) 111 (69.4)   63 (64.9) 59 (72.0)  
80+ 48 (14.5) 27 (15.8) 21 (13.1)   15 (15.4) 7 (8.5)  
Education:             
<10 yrs 136 (41.1) 67 (39.2) 69 (43.1) 0.733b 35 (36.1) 37 (45.1) 0.434c
10–15 146 (44.1) 77 (45.0) 69 (43.1)   45 (46.4) 33 (40.3)  
>15 yrs 40 (12.1) 20 (11.7) 20 (12.5)   13 (13.4) 11 (13.4)  
Unknown 9 (2.7) 7 (4.1) 2 (1.3)   4 (4.1) 1 (1.2)  
Marital status             
Cohabitating 172 (52.0) 88 (51.5) 84 (52.5) 0.850a 55 (56.7) 44 (53.7) 0.422a
Living alone 159 (48.0) 83 (48.5) 76 (47.5)   42 (43.3) 38 (46.3)  
Comorbidity -questionnaire             
Yes 231 (69.8)       83 (85.6) 69 (84.1) 0.663a
No 35 (10.6)       13 (13.4) 13 (15.9)  
Unknown 65 (19.6)       1 (1.0) 0   
  1. aDifferences between groups were tested by Pearsons χ2 test. bAge difference between groups were tested by Student’s T-test. cDiffrences between groups were tested by Wilcoxon test
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