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. 2016 Sep 20;16:13. doi: 10.1186/s12895-016-0050-5

Table 7.

Remarkable hereditary of spontaneous, sternum and shoulder keloids

Family history Spontaneous Sternum Shoulder Total
Yes No Yes No Yes No
Positive 13 37 18 32 15 35 50
Negative 21 188 47 162 29 180 209
Total 34 225 65 194 44 215 259
P value (chi-square test) 0.002 0.047 0.006