The percentage prevalence (with 95% CIs) of gastrointestinal malignancy in 16 subgroups by sex, age and haemoglobin quartile of 720 subjects with iron deficiency anaemia, Poole Hospital 2004–2012
| Haemoglobin/g/L | Female ≤70 years | Female >70 years | Male ≤70 years | Male >70 years |
|---|---|---|---|---|
| Q1:≥111.5 | 0.0 (0.0 to 10.2) 0/34 | 2.9 (0.5 to 14.5) 1/35 | 2.4 (0.4 to 12.3) 1/42 | 11.1 (5.5 to 21.2) 7/63 |
| Q2 : 102.5–111.4 | 0.0 (0.0 to 7.0) 0/51 | 3.8 (1.3 to 10.7) 3/78 | 5.3 (0.9 to 24.6) 1/19 | 19.4 (9.2 to 36.3) 6/31 |
| Q3 : 91.5–102.4 | 3.6 (1.0 to 12.1) 2/56 | 7.7 (3.3 to 16.8) 5/65 | 0.0 (0.0 to 24.3) 0/12 | 20.9 (11.4 to 35.2) 9/43 |
| Q4 : ≤91.4 | 2.4 (0.4 to 12.6) 1/41 | 13.7 (7.6 to 23.4) 10/73 | 22.6 (11.4 to 39.8) 7/31 | 32.6 (20.9 to 47.0) 15/46 |
Q, quartile; lower figures in each box indicate the number of cancers/number of subjects in each subgroup.