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Table 5 Diagnostic interval in calendar days displayed by GP’s symptom interpretation, referral mode, gender, age groups and co-morbidity (N=3,672)

From: Cancer suspicion in general practice, urgent referral and time to diagnosis: a population-based GP survey and registry study

   Quantile regression results (adjusted)1
25th percentile 50th percentile 75th percentile 90th percentile
  n (%) estimate (95% CI) estimate (95% CI) estimate (95% CI) estimate (95% CI)
Gender
Male 1,961 (53.4) -4(-6;-1) -1(-6;3) -6(-21;10) -19(-242;203)
Female 1,711 (46.6) ref. ref. ref. ref.
Age groups (years):
18-44 289 (7.9) -1(-7;4) -1(-9;4) -8(-22;7) -52(-139;35)
45-54 447 (12.2) -2(-6;2) -6(-12;0) -10(-25;5) -37(-276;303)
55-64 835 (22.7) -3(-6;0) -5(-10;1) -11(-29;7) -56(-132;21)
65-74 1,129 (30.7) 0(-2;2) 0(-6;6) -2(-21;17) -30(-107;48)
> = 75 972 (26.5) ref. ref. ref. ref.
GP’s symptom Interpretation
Alarm 1,766 (48.1) ref. ref. ref. ref.
Serious 706 (19.2) 3(0;6) 8(3;13) 24(7;41) 68(-102;237)
Vague 1,200 (32.7) 17(13;21) 34(28;41) 72(38;107) 192(-98;483)
Referral Mode
CPP 1,371 (37.3) ref. ref. ref. ref.
Cancer obs. – no CPP 888 (24.2) 5(1;9) 13(7;19) 32(17;46) 108(-31;248)
Other reasons 1,253 (34.1) 8(4;11) 16(11;22) 34(17;52) 123(86;331)
Unknown 160 (4.4) 3(-7;13) 10(-10;30) 30(1;59) 179(-412;770)
Co-morbidity
None 2,780 (75.7) ref. ref. ref. ref.
Moderate 741 (20.2) -1(-3;1) 2(-2;7) 8(-6;23) 5(-57;66)
High 151 (4.1) -2(-7;4) 1(-9;13) -1(-30;28) -27(-110;55)
  1. Point estimates marked in bold are statistically significant at minimum level of p < 0.05.
  2. 1Adjusted for gender, age groups, symptom interpretation, referral mode, cancer site, comorbidity, educational background, disposable income and region of residence.
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