Variable | OR | 95% CI | P-value |
---|---|---|---|
For the 5 years prior to diagnosis | |||
Patient symptoms and diagnoses | |||
Depression and/or anxiety | 2.5 | 1.1 to 5.7 | 0.031 |
Diarrhoea | 4.5 | 2.0 to 10.0 | <0.001 |
Anaemia | 26.3 | 5.7 to 120.6 | <0.001 |
GP referral and investigations | |||
Referrals | 2.8 | 1.1 to 7.3 | 0.033 |
Endoscopya | 2.9 | 1.1 to 7.5 | 0.026 |
Haematology | 7.6 | 2.2 to 25.8 | 0.001 |
Immunology | 3.6 | 1.4 to 9.0 | 0.006 |
Excluding 1 year prior to diagnosis | |||
Patient symptoms and diagnoses | |||
Diarrhoea | 3.3 | 1.6 to 6.7 | 0.001 |
Anaemia | 10.7 | 2.9 to 39.5 | <0.001 |
GP referral and investigations | |||
Microbiology | 2.7 | 1.1 to 6.9 | 0.032 |
↵a Includes gastroscopies, sigmoidoscopies and colonoscopies. OR = odds ratio.