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. 2020 Sep 16;157(1):79–83. doi: 10.1001/jamadermatol.2020.3671

Table 1. Demographic Characteristics of Patients Who Received Immune Checkpoint Inhibitors for Metastatic Melanoma.

Variable No. (%) P value
New CM Total (n = 2251)
No (n = 2209) Yes (n = 42)
Age, mean (SD), y 62.7 (14.4) 66.6 (12.4) 62.8 (14.4) .08a
Sex
Female 800 (36.2) 14 (33.3) 814 (36.2) .70b
Male 1409 (63.8) 28 (66.7) 1437 (63.8)
Race
Asian/Indian 40 (1.8) 0 40 (1.8) .53c
Black 30 (1.4) 0 30 (1.3)
Native American 1 (0) 0 1 (0)
White 2047 (92.7) 39 (92.9) 2086 (92.7)
Other 22 (1.0) 0 22 (1.0)
Patient refused 62 (2.8) 3 (7.1) 65 (2.9)
Unknown 7 (0.3) 0 7 (0.3)
Ethnicity
Hispanic 44 (2.0) 0 44 (2.0) .23c
Not Hispanic 2031 (91.9) 42 (100.0) 2073 (92.1)
Unknown 134 (6.1) 0 134 (6.0)
Family history of melanoma
No 1804 (81.7) 30 (71.4) 1834 (81.5) .02b
Yes 360 (16.3) 10 (23.8) 370 (16.4)
Unknown 45 (2.0) 2 (4.8) 47 (2.1)

Abbreviation: CM, cutaneous melanoma.

a

P value based on t test.

b

P value based on χ2 statistic.

c

P value based on Fisher exact test.