Table 3.

Histology scores.

Parameter	Group 1 N = 12 mean ± SD	Group 2 N = 10 mean ± SD	Statistics	P value
Mean epithelial height	38.02 ± 12.96	33.62 ± 11.52	T-independent test	0.415 (95% confidence interval: −6.62437–15.41171)
Edema	1.83 ± 1.267	1.80 ± 1.033	Chi square	0.505 (Chi Sq Val = 2.338)
Fibrosis	1.75 ± 1.422	1.60 ± 1.174	Chi square	0.417 (Chi Sq Val = 2.842)
Cilia	1.36 ± 1.206	1.00 ± 1.054	Chi square	0.774 (Chi Sq Val = 1.113)
Mononuclear cell infiltrate	1.42 ± 0.996	1.40 ± 1.075	Mann-Whitney	0.945 (U = 59)

Group 1: cryotherapy.

Group 2: control.

SD: standard deviation.