Characteristics of the cohort with extended follow up
| Men (n = 83) | Women (n = 180) | All (n = 263) | |
|---|---|---|---|
| *For the 210 patients alive at the end of the period. IQR, interquartile range. | |||
| Maximum follow up, months from index date* | 45 | 46 | 46 |
| Median (approximately) | 38 | 38 | 38 |
| IQR (approximately) | 35–41 | 35–41 | 35–41 |
| Haemoglobin at index date (g/l) | |||
| Median | 100 | 93 | 95 |
| IQR | 83–111 | 79–102 | 81–104 |
| Age at index date | |||
| Median | 71 | 75 | 74 |
| IQR | 61–78 | 64–82 | 63–80 |
| Gastrointestinal investigation in first year (%) | 34 (41) | 47 (26) | 81 (31) |
| Normal haemoglobin in first year | 41 (49) | 135 (75) | 176 (67) |
| Full blood count in follow up period | 69 (83) | 132 (73) | 201 (76) |
| Haemoglobin below normal in follow up period | 46 (55) | 67 (37) | 113 (43) |
| New gastrointestinal investigation | 17 (20) | 26 (14) | 43 (16) |
| New cancer diagnosed | |||
| In gastrointestinal tract | 5 | 2 | 7 |
| Not in gastrointestinal tract | 5 | 2 | 7 |
| Metastatic with unknown primary | 3 | – | 3 |