Table 1.

Risk factors for prostate cancer

Cases (n = 2183)
Controls (n = 10,000)
OR (95% CI)a
n (%)n (%)
BPH
    No prior historyb,c1622 (74.3)8391 (83.1)
    Between 1 and 2 yr before140 (6.4)211 (2.1)2.11 (1.67–2.66)
    More than 2 yr before421 (19.3)1398 (14.0)1.25 (1.10–1.42)
General practitioner visitsd
    0–2b159 (7.3)1946 (19.5)
    3–5334 (15.3)2031 (20.3)1.63 (1.33–2.00)
    6–12802 (36.7)3301 (33.0)1.84 (1.52–2.22)
    ≥13888 (40.7)2722 (27.2)1.78 (1.45–2.18)
Referralsd
    0–1b545 (25.0)5808 (58.1)
    2–4855 (39.2)2533 (25.3)2.90 (2.56–3.29)
    ≥5783 (35.9)1659 (16.6)3.49 (3.03–4.03)
Hospital admissionsd
    0b1232 (56.4)7774 (77.7)
    1481 (22.0)1170 (11.7)1.75 (1.54–2.00)
    ≥2470 (21.5)1056 (10.6)1.76 (1.53–2.02)
  • a Estimates of risk are adjusted for age, calendar year, use of aspirin, NA-NSAIDs, and paracetamol, and all the variables included in the table using logistic regression.

  • b Reference category.

  • c BPH diagnosed less than 1 year before the index date is included in the reference category.

  • d In the 2 years prior to the index date.