Table 3. Adjusted HRa with 95% CI of subtypes of squamous oral–oesophageal cancer by daily coffee consumption.
| 0, <1 cup | 1–4 cups | 5–8 cups | 9+ cups | HR per 1 unit | P-trend | |
|---|---|---|---|---|---|---|
| Buccal | ||||||
| Cases | 29 | 114 | 158 | 53 | ||
| Pyrs | 580 385 | 2 213 629 | 2 184 454 | 619 489 | ||
| HR | 1.03 | Ref | 1.12 | 0.96 | 1.01 | 0.92 |
| 95% CI | (0.68, 1.55) | (0.88, 1.44) | (0.68, 1.36) | (0.88, 1.15) | ||
| Oesophagus | ||||||
| Cases | 6 | 25 | 49 | 16 | ||
| Pyrs | 580 385 | 2 213 629 | 2 184 454 | 619 489 | ||
| HR | 0.93 | Ref | 1.34 | 0.97 | 1.06 | 0.67 |
| 95% CI | (0.38, 2.26) | (0.82, 2.18) | (0.50, 1.88) | (0.82, 1.36) |
Abbreviations: CI=confidence interval; HR=hazard ratios; Pyrs=person years.
a
Adjusted for sex, daily smoking, body mass index and education.