WHO South-East Asia journal of public health · 2024
Risk Factors for Latent Tuberculosis among Health-care Workers in Sri Lanka.
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Yasaratna Niludi Ranwanee, Weerasinghe Manuj Chrishantha
Аннотация
INTRODUCTION: Management of latent tuberculosis infection (LTBI) was introduced as a national policy in Sri Lanka in 2022, targeting high-risk groups, including health-care workers (HCWs). This study aimed to identify the potential risk factors for LTBI among HCWs in government hospitals.
METHODS: A case-control study was conducted. Cases and controls were identified by a screening survey conducted among those tested by the tuberculin skin test (TST). The survey was conducted among HCWs of eight government hospitals in Colombo in 2022. LTBI cases were defined as TST positives (≥10 mm) without a history of pulmonary tuberculosis (TB) and controls were those rated as negative. The cases-to-control ratio was 1:1, with a sample size of 128 cases and 128 controls. Multiple logistic regression analysis was conducted to identify the risk factors.
RESULTS: The significant risk factors identified included age ≥40 years (adjusted odds ratio [AOR] - 2.4, 95% confidence interval [CI]: 1.28-4.47) having a service duration of ≥6 years (AOR - 2.92, CI: 1.469-5.82), not maintaining distance (AOR - 2.83, CI: 1.43-5.58) and not wearing face masks when dealing with suspected or diagnosed TB patients (AOR - 3.55, CI: 1.80-7.00), and settings with inadequate TB infection control practices (AOR - 3.47, CI: 1.85-6.47).
CONCLUSION: Improving infection control measures, training HCWs on TB prevention, providing adequate personal protective equipment, and initiating screening for LTBI among HCWs are recommended.
METHODS: A case-control study was conducted. Cases and controls were identified by a screening survey conducted among those tested by the tuberculin skin test (TST). The survey was conducted among HCWs of eight government hospitals in Colombo in 2022. LTBI cases were defined as TST positives (≥10 mm) without a history of pulmonary tuberculosis (TB) and controls were those rated as negative. The cases-to-control ratio was 1:1, with a sample size of 128 cases and 128 controls. Multiple logistic regression analysis was conducted to identify the risk factors.
RESULTS: The significant risk factors identified included age ≥40 years (adjusted odds ratio [AOR] - 2.4, 95% confidence interval [CI]: 1.28-4.47) having a service duration of ≥6 years (AOR - 2.92, CI: 1.469-5.82), not maintaining distance (AOR - 2.83, CI: 1.43-5.58) and not wearing face masks when dealing with suspected or diagnosed TB patients (AOR - 3.55, CI: 1.80-7.00), and settings with inadequate TB infection control practices (AOR - 3.47, CI: 1.85-6.47).
CONCLUSION: Improving infection control measures, training HCWs on TB prevention, providing adequate personal protective equipment, and initiating screening for LTBI among HCWs are recommended.