Mongolian spots as a finding in forensic examinations of possible child abuse-implications for case work.

Comparison of incidence rates for grouped skin types (group 1 = skin types 1 + 2, group 2 = skin types 3–6) showed a highly significant difference ( p = 0.0004, incidence rate difference − 1:7) with an incidence rate of 1:53 (95 % CI 1:438–1:15) for group 1 and 1:6 (95 % CI 1:10–1:4) for group 2.

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