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Table 2 Symptoms-to-diagnosis interval, according to different variables

From: Effect of diagnostic delay on survival in patients with colorectal cancer: a retrospective cohort study

  Symptoms-to-diagnosis interval (months)
Mean ± SD Median Interquartilic range
Total 5.3 ± 6.0 3.4 1.5–6.4
Age
  < 50 6.6 ± 8.5 4.1 2.0–7.9
 50–60 5.2 ± 5.1 3.4 1.9–6.5
 60–70 5.4 ± 5.9 3.5 1.8–6.7
 70–80 5.4 ± 6.3 3.2 1.6–6.3
  > 80 4.5 ± 5.1 2.7 1.1–5.4
Gender
 Men 5.0 ± 5.8 3.2 1.4–6.3
 Women 5.6 ± 6.2 3.7 1.8–6.6
Tumor location
 Colon 5.0 ± 6.0 3.2 1.3–6.2
 Rectum 5.9 ± 6.0 3.7 2.2–7.3
Stage
 I 5.7 ± 6.5 3.6 2–6.2
 II 5.2 ± 5.6 3.4 1.4–6.7
 III 5.3 ± 6.3 3.4 1.4–6.4
 IV 5.0 ± 5.5 3.2 1.8–6.1
Symptoms before diagnosisa
 Abdominal pain 4.6 ± 5.7 2.8 1.1–6.1
 Constitutional syndrome 5.5 ± 5.8 3.5 2.2–6.3
 Abdominal mass 5.4 ± 5.4 3.5 2.1–6.7
 Change in bowel habits 5.6 ± 6.0 3.7 2.1–6.7
 Anemia 6.0 ± 5.8 3.9 2.3–7.2
 Rectal pain 6.2 ± 6.4 3.9 2.1–8.7
 Rectal bleeding 6.1 ± 6.4 4.0 2.1–7.4
 Rectal tenesmus 6.0 ± 6.0 4.4 2.2–7.5
 Mucorrhage 8.0 ± 7.6 5.2 3.0–12.0
  1. SD Standard Deviation
  2. aIn order to compute the symptoms-to-diagnosis interval, the earliest symptom was selected for each patient