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. 2026 May 1;30(1):80. doi: 10.1007/s10151-026-03309-5

Table 1.

Demographics and some clinical features of patients with chronic anal fissure with or without sentinel piles treated with botulinum toxin

Variable Overall (n = 249) SP− (n = 181) SP+ (n = 68) p value
Age, years—median (range) (IQR) 41 (19–82) 41.0(15) 39.5 (13) NS (0.545Ω)
Sex—n (%)
Female 78 (31.3%) 48 (26.5%) 30 (44.1%) 0.009*
Male 171 (68.7%) 133 (73.4%) 38 (55.9%)
Symptom duration, weeks —median – 12 16 NS 0.247Ω
Objective healing after first BT injection—n (%) 186 (74.7%) 146 (80.7%) 40 (58.8%) < 0.001*
Objective healing after second BT injection—n (%) 200 (80.3%) 153 (84.5%) 47 (69.1%) 0.011*
Pre-treatment REALISE score—median (IQR) 18 (6) 18 (7) 18 (6)

NS

0.871†

Post-treatment REALISE score—median (IQR) 6 (3) 5 (3) 7 (4) < 0.001†
Post-treatment Q1 score 1 (2) 1 (2) 2 (1) < 0.001Ω
Post-treatment Q2 score 1 (0) 1 (0) 1 (1) 0.003Ω
Post-treatment Q3 score 1 (0) 1 (0) 1 (1) 0.002Ω
Post-treatment Q4 score 1 (1) 1 (0) 1 (1) 0.039Ω
Post-treatment Q5 score 1 (1) 1 (1) 1 (1) 0.017Ω
Recurrence during follow-up n = 226 (%) 41 (18.1%) 27 (15.7%) 14 (25.9%) NS 0.106¥

Data are presented as median (interquartile range) or number (%). p values refer to comparisons between with sentinel pile (SP+) and without sentinel pile (SP−) groups. Bold values indicate statistically significant results (p<0.05). †Wilcoxon signed-rank test, ¥Fisher’s exact test, *chi-squared test, ΩMann–Whitney U-test

BT botulinum toxin, IQR interquartile range, NS not significant