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Published on: September 5, 2017
A case control study in the Indian subcontinent ethnic population on the effect of return visits and the subsequent
H Singh1, M Joshi, L P Ormerod
1Department of Respiratory Medicine, Chest Clinic, Blackburn Royal Infirmary, Blackburn BB2 3LR, UK.
Setting:
A local government area in North West England with a significant population of Indian subcontinent (ISC) ethnic origin and a high incidence of tuberculosis.
Objective:
To assess whether return visits to the ISC are associated with an increased risk of developing clinical tuberculosis.
Methods:
Analysis of data prospectively obtained from ISC patients diagnosed with TB in 1998-2002 (cases) and age and sex matched ISC patients in two local GP practices (controls).
Results:
There is at best weak evidence of association between case status and whether individuals have had a repeat visit to the subcontinent within 3 years of notification in this cohort; odds ratio 1.26 (95% CI (0.95, 1.76)); Fishers exact test P=0.09.
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