Table 2. Comparison of histogram parameters among the benign and malignant groups.

Variables	Benign (n=45)	Malignant (n=78)	P value
Mean	75.408 (62.038, 96.146)	51.788 (37.103, 59.307)	<0.001
Variance	358.020 (274.780, 455.335)	415.240 (275.908, 690.262)	0.171
Skewness	0.231±0.559	0.783±0.505	<0.001
Kurtosis	0.183 (−0.352, 1.108)	0.777 (0.058, 2.361)	0.011
Percentile 1%	37.000 (23.500, 48.000)	11.000 (1.000, 22.250)	<0.001
Percentile 10%	54.380±21.490	24.100±16.715	<0.001
Percentile 50%	76.000 (56.500, 97.000)	49.000 (35.750, 57.000)	<0.001
Percentile 90%	103.000 (87.500, 125.000)	77.000 (65.250, 91.500)	<0.001
Percentile 99%	128.310±31.284	114.33±35.585	0.030

Data in accordance with normal distribution are expressed by average ± standard deviation. Data that do not conform to the normal distribution are expressed by the median (25th percentile, 75th percentile).