From: Spectrum of CT appearance and CT severity index of COVID-19 pulmonary infection in correlation with age, sex, and PCR test: an Iraqi experience
CT severity index
Male
Female
No.
Score 1 (< 5%)
6
2
4
p value = 0.0002
R2 = 0.9
Score 2 (5–25%)
91
53
38
Score 3 (26–50%)
64
35
29
Score 4 (51–75%)
9
8
1
Score 5 (> 75%)
0