What Researchers Did
Researchers conducted a matched cohort study using a national health insurance database to compare the incidence of tuberculosis reactivation in patients who underwent hyperbaric oxygen therapy versus a matched control group.
What They Found
Out of 2258 patients, 1129 received hyperbaric oxygen therapy (HBOT) and 1129 did not. One year post-exposure, the HBOT group had significantly more active tuberculosis cases (11 cases) compared to the non-HBOT group (1 case, P = 0.006). Multiple regression analysis confirmed HBOT as the sole significant contributor to TB activation.
Canadian Relevance
This study has no direct Canadian connection as it was conducted using a national health insurance database from another country.
Study Limitations
As a retrospective database study, it may be limited by unmeasured confounding factors or specific characteristics of the studied population.