Table 2.
Comparison of average incidence numbers of head and neck cancer between 1999–2001 and 2009–2011
| Primary site | Average incidence no. (1999-2001) |
Average incidence no. (2009-2011) |
Increase ratio of incidence no.a) |
||||||
|---|---|---|---|---|---|---|---|---|---|
| Total | Male | Female | Total | Male | Female | Total | Male | Female | |
| Lip | 29.3 | 18.7 | 10.7 | 36.0 | 22.7 | 13.3 | 1.17 | 1.15 | 1.19 |
| Oral tongue | 321.3 | 218.7 | 102.7 | 535.7 | 354.3 | 181.3 | 1.59 | 1.54 | 1.68 |
| Oral cavity | 491.0 | 319.7 | 171.3 | 526.0 | 333.3 | 192.7 | 1.02 | 0.99 | 1.06 |
| Major salivary gland | 243.0 | 137.3 | 105.7 | 418.0 | 230.7 | 187.3 | 1.63 | 1.60 | 1.68 |
| Nasopharynx | 315.3 | 223.7 | 91.7 | 384.3 | 292.3 | 92.0 | 1.16 | 1.24 | 0.95 |
| Nasal cavity and paranasal sinus | 241.0 | 152.0 | 89.0 | 327.7 | 209.7 | 118.0 | 1.29 | 1.31 | 1.26 |
| Tonsil | 138.7 | 115.7 | 23.0 | 341.7 | 291.7 | 50.0 | 2.34 | 2.39 | 2.06 |
| Hypopharynx | 279.3 | 260.3 | 19.0 | 387.0 | 367.0 | 20.0 | 1.32 | 1.34 | 1.00 |
| Oropharynx | 59.0 | 53.3 | 5.7 | 80.3 | 72.3 | 8.0 | 1.29 | 1.29 | 1.34 |
| Larynx | 1,092.7 | 989.0 | 103.7 | 1,151.3 | 1,081.7 | 69.7 | 1.00 | 1.04 | 0.64 |
a)
Population growth-adjusted ratio: average incidence number during 2009–2011/(average incidence no. during 1999–2001×1.053).