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Table 3 Primary care and diagnostic intervals (median in days) for lung cancer patients referred through the 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

  Primary care interval Diagnostic interval
  N Median IQI P -value PR (95% CI)
Unadjusted
PR (95 % CI)
Adjusted
N Median IQI P -value PR (95% CI)
Unadjusted
PR (95% CI)
Adjusted
All 429 7 0- 30     442 29 12- 69    
Gender
 Men 239 7 0-29 0.171 1 1 248 29 10-69 0.546 1 1
 Women 190 11.5 0-30   1.0 (0.7-1.5) 1.1 (0.8-1.6) 194 28 13-73   1.1 (0.8-1.6) 1.2 (0.8-1.7)
Age
 18-68 years 226 7 0-24 0.146 1 1 233 23 10-56 0.005 1 1
 69+ years 203 12 0-37   1.4 (1.0- 2.0) 1.5 (1.0- 2.1) 209 34 14-87   1.6 (1.2 -2.2) 1.4 (1.0- 2.1)
Education1
  ≤ 10 years 189 13 1-39 0.015 1 1 196 32 15-79 0.022 1 1
  > 10 years 221 5 0-25   0.7 (0.5- 1.0) 0.8 (0.6-1.1) 227 24 8-65   0.8 (0.6-1.2) 0.9 (0.6-1.2)
Marital status
 Living together 255 7 0-30 0.972 1 1 263 28 11-69 0.542 1 1
 Living alone 174 8 0-29   1.0 (0.7-1.4) 1.0 (0.7-1.4) 179 30 13-69   1.0 (0.7-1.5) 1.1 (0.7-1.5)
Charlson’s Index2
 0 292 8.5 0-31 0.234 1 1 301 27 10-65 0.071 1 1
 1-2 112 4 0-26   0.8 (0.5-1.3) 0.8 (0.5-1.2) 114 30 13-73   1.0 (0.7-1.6) 1.0 (0.6-1.5)
 3+ 25 17 0-50   1.5 (0.8-2.6) 1.3 (0.8-2.3) 27 61 17-106   2.0 ( 1.3- 3.4) 1.9 (1.2- 3.0)
GP’s symptom interpretation
 Alarm 135 1 0-7 0.001 1 1 136 15 7-38 0.001 1 1
 Serious 143 6 0-21   1.7 (0.9-3.29 1.6 (0.9-3.1) 148 29 9-67   1.7 (1.0- 2.9) 1.6 (1.0- 2.7)
 Vague 149 28 10-62   4.7 (2.7- 8.1) 4.8 (2.8- 8.2) 156 47 21-89   2.4 (1.5- 3.9) 2.4 (1.5 -3.9)
Use of fast-track route
 Yes 178 7 1-23 0.783 1 1 179 23 11-52 0.019 1 1
 No 245 9 0-37   1.5 (1.1 -2.2) 1.7 (1.1- 2.4) 256 34 12-88   1.8 (1.2- 2.7) 1.8 (1.2 -2.8)
  1. Only GP-involved patients were included in the analyses. Adjusted and unadjusted associations for long intervals (4th quartile) are presented as prevalence ratios (PRs) with 95% confidence intervals (95% CI).
  2. 1Years of education. 2Index date: day before first contact to GP.
  3. Effect of gender, age, education, comorbidity and marital status are mutually adjusted. GP’s symptom interpretation and use of fast-track are adjusted for gender, age, education, comorbidity and marital status.
  4. Numbers in bold are significant results.