Comparative study of one-step and four-step injection combined with external stripping and internal ligation for mixed hemorrhoids

Table 1 Comparison of baseline data between the two groups

Project	Category	Control group (n = 40)	Observation group (n = 40)	Test statistic	P value
Age (year)		50.50 ± 16.70	50.68 ± 14.59	-0.050	0.960
Gender	Male	24 (60.00)	18 (45.00)	1.805	0.179
	Female	16 (40.00)	22 (55.00)
Disease duration (year)		1 (1, 1.75)	1 (1, 8)	-1.182	0.237

The mean ± SD was utilized to express normally distributed continuous data, and independent samples t-tests were employed to compare groups. The median and interquartile range (P25, P75) were utilized to express non-normally distributed data, and Mann-Whitney U tests were employed to compare groups. The n (%) was utilized to describe categorical data, and group comparisons were performed using χ² tests.