Table 2: Total percent change (PC) and annual percent change (APC) for subgroups of patients with MMHN identified in SEER 9 registries from 1987 to 2009.

PC (%) APC (%) P value‡ Site        Sinonasal 135.3 2.7 <0.01   Nasal cavity 102.9 2.7 <0.01   Paranasal sinuses 286.6 2.3 0.19  Non-Sinonasal −40.3 1.1 0.40 Sex        Male 35.2 1.0 0.30  Female 45.5 3.4 <0.01 Age        20–54 −42.1 — —  55–84 184.4 2.9 <0.01  85+ −34.4 — — Sex and Race        White male 12.6 0.6 0.52  White female 25.6 3.4 <0.01 White Females by Age        Age 20–54 −80.2 — —  Age 55–84 306.3 5.1 <0.01  Age 85+ −44.1 — —

Blank fields indicate that the statistic could not be calculated due to insufficient patient numbers in the respective subgroup. ‡P values refer to the likelihood that the APC is not different from zero by the weighted least squares method.