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. Author manuscript; available in PMC: 2019 May 15.
Published in final edited form as: Cancer. 2018 Mar 13;124(10):2125–2133. doi: 10.1002/cncr.31322

Figure 2. Age-adjusted Incidence rates and trends over time for oropharynx squamous cell cancer (Figure 2A) and non-oropharyngeal head and neck squamous cell cancer (non-OP HNSCC, Figure 2B), by sex.

Figure 2

Incidence rates for females and males are shown in black and blue lines, respectively. Incidence on y-axis (per 100,000) and year of diagnosis on x-axis. In Figure 2A, incidence of OPSCC during 1992-2001 was stable for men (p=0.419), but increased 2001-2014 (APC 2.7, p<0.001). Incidence of OPSCC declined significantly for women (APC -0.8, p=0.002). In Figure 2B, incidence of non-OP HNSCC declined significantly during 1992-2004 (APC -2.9, p<0.001) and 2004-2014 (APC -0.9, p<0.001) for men. Among women incidence of non-OP HNSCC was stable during 1992-1996 and 2003-2014 (p>0.10 for each), but decreased significantly 1996-2003 (APC -3.3, p<0.001). Incidence rates are age-adjusted to the 2000 US Standard Population (19 age groups – Census P25-1130).