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Table 2 Characteristics of study population and patients with non-responding GP

From: The role of general practice in routes to diagnosis of lung cancer in Denmark: a population-based study of general practice involvement, diagnostic activity and diagnostic intervals

  GP responders:  
  GP involved GP not involved P-value All responders Non-responders: P-value
  N (%) N (%)   N (%) N (%)  
All 464 (68.3) 215 (31.7)   690 (71.1) 281 (28.9)  
Sex:
 Male 265 (57.1) 110 (51.2) 0.1471 379 (54.9) 168 (59.8) 0.1671
 Female 199 (42.9) 105 (48.8)   311 (45.1) 113 (40.2)  
Age:
 Mean 68.5   70.1   0.0691 69.0   69.7   0.1741
 18-39 years 3 (0.7) 2 (0.9) 0.0402 5 (0.7) 2 (0.7) 0.4612
 40-59 years 89 (19.2) 32 (14.9)   123 (17.8) 45 (16.0)  
 60-79 years 306 (65.9) 136 (63.3)   448 (64.9) 184 (65.5)  
 80+ years 66 (14.2) 45 (20.9)   114 (16.6) 50 (17.8)  
Education:
  ≤ 10 years 207 (44.6) 111 (51.6) 0.0822 324 (47.0) 145 (51.6) 0.1052
 11-15 years 186 (40.1) 78 (36.3)   266 (38.6) 106 (37.7)  
  > 15 years 51 (11.0) 18 (8.4)   71 (10.3) 19 (6.8)  
 Unknown 20 (4.3) 8 (3.7)   29 (4.1) 11 (3.9)  
Marital status:
 Cohabitating 276 (59.5) 110 (51.2) 0.0422 391 (56.7) 166 (59.1) 0.5072
 Living alone 188 (40.5) 105 (48.8)   298 (43.2) 115 (40.9)  
 Unknown       1 (0.1)    
Comorbidity 3 :
 0 283 (61.0) 82 (38.1) 0.0012 367 (53.2) 154 (54.8) 0.5142
 1-2 143 (30.8) 91 (42.3)   240 (34.8) 99 (35.2)  
 3+ 38 (8.2) 42 (19.6)   83 (12.0) 28 (10.0)  
TNM stage:
Localised 69 (14.9) 42 (19.5) 0.1232 114 (16.5) 62 (22.1) 0.0422
Advanced 395 (85.1) 173 (80.5)   576 (83.5) 219 (77.9)  
  1. 1Differences between groups were tested by Wilcoxon’s rank-sum test. 2Differences between groups were tested by the Kruskal-Wallis test. 3Charlson Comorbidity Index (CCI) from NPR (index date: day before diagnosis).