A case control study of the factors associated with occurrence of aerodigestive foreign bodies in children in a regional referral hospital in South Western Uganda
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Date
2016Author
Nakku, Doreen
Byaruhanga, Richard
Bajunirwe, Francis
Kyamwanga, Imelda T.
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Background: Aerodigestive foreign bodies (ADFB) in children are a common emergency in ENT clinics globally. The aim of this study was to determine the prevalence and common types of ADFB’s presenting to a referral hospital in South Western Uganda, and to review clinical presentation and factors that influence their occurrence among
children under 12 years of age.
Methods: We conducted a case control study comprising 40 cases and 80 unmatched controls. Consecutive and random sampling were used for the cases and controls respectively. A questionnaire was used to collect data. Clinic records were reviewed to calculate prevalence.
Results: Prevalence was 6.6 % of all paedaiatric cases seen in the ENT department that year. The most common symptoms included: history of choking [45 %], sudden cough [72.5 %], stridor [60 %] and failure to swallow [35 %]. The most common location for an airway foreign body was the right main bronchus [40 %] and the upper one third of the oesophagus [32.5 %] for digestive tract foreign bodies. Seeds and coins were most frequently removed. Children from upper level SES had a significantly lower risk of foreign body occurrence [OR = 0.29, p = 0.02] compared to those from a low SES. Also significantly, most cases were referrals from other government health centres [p = <0.01]. The male to female ratio among cases was 2:1. Children of older mothers were less likely to have an ADFB.
Conclusion: Prevalence of ADFB’s is relatively high. The most common symptoms are a history of choking, cough and failure to swallow. Age under 5 years, male sex, younger maternal age and low socioeconomic status increased odds of ADFBs
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