Application Effects of Compound Alcohol Hand Sanitizer,Povidone-iodine Cotton Pads and Normal Saline Under Field Battle

LEI Yanyuan; LI Xiuxia; SHANGLIU Wenxin; ZHANG Peng; CHEN Huageng; ZHANG Tan; ZHANG Yue

doi:10.13730/j.issn.2097-2148.2025.12.013

Abstract：Objective To compare the intervention effects of compound alcohol hand sanitizer,normal saline and 0.5％povidone-iodine cotton pads with once and twice disinfection under field conditions,so as to provide a basis for se-lecting efficient and convenient disinfection methods in field settings.Methods In the simulated field battle from Decem-ber 2023 to January 2024,655 volunteers were divided into compound alcohol hand sanitizer group,povidone-iodine cotton pads group Ⅰ,povidone-iodine cotton pads group Ⅱ and normal saline group according to different treatment methods by convenience sampling method.Bacterial colony were sampled before and after hand disinfection among the 4 groups,the number of bacterial colonies was observed after 24 h of blood agar culture,and the qualified rate of disinfection among each group was calculated to evaluate the disinfection effect.Results After disinfection,there was a statistically signifi-cant difference in the number of colonies among the 4 groups(H=10.080,P=0.018),and the number of colonies in povidone-iodine cotton pads group Ⅰ,povidone-iodine cotton pads group Ⅱ and normal saline group was higher than that in compound alcohol hand sanitizer group(all P＜0.05).Compared with those before disinfection,the number of colo-nies in compound alcohol hand sanitizer group,povidone-iodine cotton pads group Ⅰ,povidone-iodine cotton pads groupⅡ and normal saline group decreased significantly(all P＜0.05).After disinfection,there was statistically significant difference in the qualified rate of hand disinfection among the 4 groups(x2=9.019,P=0.029),and the qualified rate of disinfection in povidone-iodine cotton pads group Ⅱ was higher than those in compound alcohol hand sanitizer group and normal saline group(all P＜0.05).Compared with those before disinfection,the qualified rates of disin-fection in all 4 groups significantly increased after disin-fection(all P＜0.05).Conclusion All 4 disinfection methods are effective in field battle,each with applicable scenarios.Twice disinfection with povidone-iodine cotton pads is suitable for rear rescue with sufficient supplies,compound alcohol hand sanitizer is suitable for rapid disinfection at the front line,normal saline can be used as an emergency substitute and once disinfection with povidone-iodine cotton pads is suitable for emergency situations.