What Researchers Did
Researchers retrospectively analyzed the lung function test results of experienced occupational divers to understand the long-term effects of diving on their respiratory health, considering diving experience, smoking, and job type.
What They Found
The study included 64 divers with an average of 13.6 years of diving experience. Divers with 20 or more years of experience showed significantly lower FEV1/FVC ratios and FEF25-75(%) values (p < 0.001 and p < 0.05, respectively). For every year of diving experience, the FEF25-75(%) value decreased by 1.04%. Smoking history and occupational group (commercial divers vs. SCUBA instructors) did not significantly affect lung function test results.
What This Means for Canadian Patients
This study suggests that Canadian occupational divers with many years of experience may develop subtle, asymptomatic changes in their lung function, specifically related to small airways. Regular medical examinations are important to monitor these long-term effects, even if divers feel healthy and do not report symptoms. Early detection of these changes could help manage potential long-term respiratory health issues.
Canadian Relevance
No direct Canadian connection identified.
Study Limitations
The study was retrospective, meaning it looked back at existing data, and involved a relatively small number of divers.