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. 2021 May 7;4(6):e1409. doi: 10.1002/cnr2.1409

TABLE 1.

Demographic characteristics and reported sun exposure by control and case groups

Control (N = 132) Unilateral (N = 259) Bilateral (N = 120) p‐value a
Mean ± SD Mean ± SD Mean ± SD
Maternal age at child birth (years) 24.9.0 ± 6.1 24.7 ± 5.9 26.0 ± 6.5 .29
Maternal schooling years 9.3 ± 3.5 9.6 ± 3.8 9.4 ± 4.3 .80
Child's age at interview (months) 40.6 ± 17.6 30.3 ± 19.1 17.7 ± 12.0 <.0001
Child's age at diagnosis (months) n/a 24.2 ± 13.2 14.4 ± 10.1 <.0001
Residential elevation (meters) 1773.7 ± 782.4 1691.6 ± 893.5 1660.1 ± 890.9 .67
% (n) % (n) % (n)
Child sex: Male 53.03 (70) 50.97 (132) 45.83 (55) .50
Female 46.97 (62) 49.03 (127) 54.17 (65)
a

p‐value was from Kruskal Wallis test for group differences in quantitative variables and Chi‐square test for binary variable.