Rising Incidence of Mucosal Melanoma of the Head and Neck in the United States

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.