Table 1 Distribution of pharyngeal cancer cases in the NCI-cohort by sub-localization and period of follow-up
ICD8 | 1934–1979 | 1980–2004 | 1934–2004 | ||||||
|---|---|---|---|---|---|---|---|---|---|
Obs | Exp | SMR (95%CI) | Obs | Exp | SMR (95%CI) | Obs | Exp | SMR (95%CI) | |
146 (Oropharynx) | 5 | 2.96 | 1.69 (0.55–3.95) | 8 | 8.74 | 0.92 (0.40–1.80) | 13 | 11.70 | 1.11 (0.59–1.90) |
147 (Nasopharynx) | 7 | 2.17 | 3.23 (1.30–6.65) | 4 | 3.61 | 1.11 (0.30–2.84) | 11 | 5.78 | 1.90 (0.95–3.40) |
148 (Hypopharynx) | 2 | 1.85 | 1.08 (0.13–3.91) | 3 | 4.57 | 0.66 (0.14–1.92) | 5 | 6.42 | 0.78 (0.25–1.82) |
149 (Pharynx, unspecified) | 1 | 4.37 | 0.23 (0.01–1.28) | 20 | 13.19 | 1.52 (0.93–2.34) | 21 | 17.56 | 1.20 (0.74–1.83) |
146–9 (Pharynx) | 15 | 11.34 | 1.32 (0.74–2.18) | 35 | 30.12 | 1.16 (0.81–1.62) | 50 | 41.46 | 1.21 (0.90–1.59) |