Table 2

Univariate analyses of the predictive value of GP characteristics, patient characteristics and specific triggers causing the gut feeling

Patients characteristicsNumber of patients*Number of patients with cancer (percentage confirmed cancer)p Value
Genderp=0.67
 Female15954 (34%)
 Male17764 (36%)
Age categoryp=0.17
 0–30 years163 (19%)
 31–64 years14045 (32%)
 65–100 years18070 (39%)
How long does the GP know the patient?p=0.01
 0–10 years13437 (28%)
 >11 years19680 (41%)
How well does the GP know the patient?p=0.11
 Not well277 (26%)
 A little3215 (47%)
 Quite well15145 (30%)
 Very well12550 (40%)
Ethnicityp=0.87
 Dutch204110 (35%)
 Other147 (35%)
General practitioner characteristicsNumber of patients with cancer (percentage confirmed cancer) p Value
Genderp=0.89
 Female8129 (36%)
 Male24987 (35%)
Age categoryp=0.004
 ≤50 years15141 (27%)
 >50 years15165 (43%)
Years of experiencep=0.006
 0–15 years11630 (26%)
 >15 years11951 (43%)
Triggers causing the GUT feelingNumber of patients with cancer (percentage confirmed cancer) p Value
Weight loss7921 (27%)p=0.07
Rare GP visits7319 (26%)p=0.07
Duration of symptoms6218 (29%)p=0.27
Palpable tumour5225 (48%)p=0.03
Patient's appearance4815 (31%)p=0.54
Abnormal test results3616 (44%)p=0.22
Patients medical history229 (41%)p=0.56
Pain196 (32%)p=0.74
Smoking114 (36%)p=0.93
Jaundice93 (33%)p=0.91
Family's medical history72 (29%)p=0.71
  • *Patients were excluded in analysis in case of a missing value in the involved variables.

  • GP, general practitioner.