- Social Contact Patterns Associated With Tuberculosis: A Case-control Study in Southwest Iran
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Neda Amoori, Bahman Cheraghian, Payam Amini, Seyed Mohammad Alavi
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J Prev Med Public Health. 2022;55(5):485-491. Published online September 30, 2022
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DOI: https://doi.org/10.3961/jpmph.22.335
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 Abstract
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- Objectives
Tuberculosis (TB) is a major public health concern worldwide. Social contact patterns can affect the epidemiology and risk of airborne diseases such as TB. This study was designed to investigate the social contact patterns associated with TB.
Methods
In this case-control study, groups of participants with and without TB were matched by age and sex. Participants reported the nature, location, frequency, and average duration of social contacts over 1 month. The duration and number of social and spatial contacts were compared between groups using the chi-square test and the t-test. Odds ratios (ORs) with 95% confidence intervals (CIs) were used to quantify the relationship between social contact time and TB status. Data were analyzed using Stata version 11 statistical software. A p-value of <0.05 was considered to indicate statistical significance.
Results
In this study, 80 patients with TB and 172 control participants were included, and a total of 3545 social contacts were registered. Social contact with family members (OR, 1.72; 95% CI, 1.10 to 2.40), contact with a person with TB (OR, 1.53; 95% CI, 1.16 to 2.01), and contact at the participant’s home (OR, 1.42; 95% CI, 1.19 to 1.82) were significantly associated with TB status.
Conclusions
The duration of long-term social contact, rather than the number of contacts, may be the main contact-related factor associated with TB transmission in this population. The focus of contact-tracing efforts should be on finding and treating both family members and long-term contacts in non-household settings.
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Summary
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Citations
Citations to this article as recorded by  - Collaboration and involvement of village heads, public health officer, and village midwives in improving adherence of tuberculosis patients
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BMC Pulmonary Medicine.2023;[Epub] CrossRef
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