Table 4.
Incidence and severity of bleeding related to patient characteristics*
| Technique | |||||||
|---|---|---|---|---|---|---|---|
| Cryobiopsy (N = 359) | Forceps biopsy (N = 359) | ||||||
| Bleeding severity | None/Mild | Moderate/Severe | p-value | None/Mild | Moderate/Severe | p-value | |
| Clinical relevance | Low | High | Low | High | |||
| all – no (%) | 301 (83.8) | 58 (16.2) | – | 344 (95.8) | 15 (4.2) | – | |
| n | |||||||
| Age | 349 | ||||||
| < 65 yr | 160 | 143 | 17 | 0.018 | 155 | 5 | 0.59 |
| > = 65 yr | 189 | 151 | 38 | 180 | 9 | ||
| Sex | 351 | ||||||
| Female | 153 | 121 | 32 | 0.026 | 145 | 8 | 0.41 |
| Male | 198 | 175 | 23 | 192 | 6 | ||
| Body height | 342 | ||||||
| = < 170 cm | 186 | 146 | 40 | 0.002 | 175 | 11 | 0.043 |
| > 170 cm | 156 | 142 | 14 | 154 | 2 | ||
| Smoking | 332 | ||||||
| Non-smoker | 132 | 109 | 23 | 0.52 | 124 | 8 | 0.27 |
| Ex-smoker | 138 | 118 | 20 | 135 | 3 | ||
| Current smoker | 62 | 55 | 7 | 59 | 3 | ||
| Aspirin | 354 | ||||||
| Yes | 51 | 38 | 13 | 0.067 | 49 | 2 | 1.0 |
| No | 303 | 258 | 45 | 290 | 13 | ||
*Clinical relevance of bleeding is categorized as “low” (none, and mild bleeding) and “high” (moderate and severe bleeding) for both biopsy techniques. Absolute number (n) of evaluable patients are listed in the second column. Data were missing for age in 10 patients (2.8%), sex in 8 patients (2.2%), body height in 17 patients (4.7%), smoking status in 27 patients (7.5%), and for aspirin use in 5 patients (1.4%). P-values were calculated by 2 tail Fisher’s exact test for independent samples focusing on each technique separately