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. 2013 Oct 29;8(10):e78271. doi: 10.1371/journal.pone.0078271

Table 4. Univariate analysis of qualitative factors.

Benign Malignant Total p Value
Gender Male 17 37 54 0.209
Female 12 41 53
Smokinghistory No 18 49 67 0.557
Yes 11 29 40
Malignancy history No 28 70 98 0.241
Yes 1 8 9
Located on Upper lobe No 15 34 49 0.297
Yes 14 44 58
Spiculation No 18 14 32 0.000
Yes 11 64 75
Lobulation No 10 1 11 0.000
Yes 19 77 96
Calcification No 24 76 100 0.015
Yes 5 2 7