Patterns of antivenom administration among snakebite patients in selected Zambian hospitals: a retrospective multi-facility review.

Background: Snakebite envenoming remains a major but neglected public health problem in sub-Saharan Africa, where access to antivenom is often limited and unevenly distributed. In Zambia, evidence on facility-level determinants of antivenom use is scarce. This study examined factors associated with antivenom administration among snakebite patients in selected health facilities. Methods: A retrospective cross-sectional study was conducted among 128 snakebite patients presenting to five health facilities in Zambia. Associations between antivenom administration and health facility, admission year, age group, and gender were assessed using Fisher's exact test, with statistical significance set at p < 0.05. Results: Overall, 16/128 patients (12.5%) received antivenom. Antivenom administration varied significantly by health facility (p < 0.0001). All patients at Kabwe General Hospital received antivenom (9/9, 100%), compared to 50% (2/4) at Commando Urban Health Centre and 22.7% (5/22) at Chipata Central Hospital. No patients received antivenom at Mpongwe Mission Hospital (0/70) or St. Dominic's Mission Hospital (0/23), where antivenom was not available. Admission year (2023 vs 2024; p = 0.78), age group (p = 0.53), and gender (p = 0.80) were not significantly associated with antivenom use. Conclusion: Antivenom administration in this setting is determined primarily by health facility-level availability rather than patient demographic or temporal factors. The very low overall treatment rate highlights critical inequities in access to life-saving therapy. Strengthening antivenom procurement, equitable distribution, and referral systems is urgently needed to reduce preventable morbidity and mortality from snakebite envenoming.