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Year : 2021  |  Volume : 10  |  Issue : 6  |  Page : 2184-2194

Diagnostic accuracy of screening tools for chronic obstructive pulmonary disease in primary health care: Rapid evidence synthesis

The George Institute for Global Health, New Delhi, India

Correspondence Address:
Dr. Jyoti Tyagi
308-309, Third Floor, Elegance Tower, Plot No. 8, Jasola District Centre, New Delhi - 110 025
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jfmpc.jfmpc_2263_20

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Background: Chronic obstructive pulmonary disease (COPD) contributed significantly to burden of diseases in India, with missed , incorrect, and delayed diagnosis in primary care. We conducted a rapid evidence synthesis, to summarize the evidence on accuracy of the screening tests for COPD in primary health care on request form State Health Resource Centre, Chhattisgarh. Methods: Considering the rapid nature of decision making, our approach was to first search for existing systematic reviews. We identified one existing systematic review on the topic with the search conducted until 2014. We updated the review by searching in two major databases screened, title/abstracts, and full texts of studies as per eligibility criteria and extracted relevant data. A narrative synthesis was conducted. Results: We retrieved 7,007 and included five new studies, to add to 10 studies of the existing systematic review. Overall, 13 studies assessed diagnostic accuracy of screening questionnaires [e.g., COPD Diagnostic Questionnaire (CDQ)], five assessed handheld flow meters (COPD6 and PICO-6), and four assessed the combination of both the tests. The CDQ questionnaire using a score threshold ≥16.5 or >17 demonstrated comparatively a higher sensitivity both in pooled result for ever-smokers [87.5% (95% CI 83.1--90.9%)] and among the adults >35 years [73.8--93% (95% CI 69--98%)] when compared to a different score threshold of CDQ and other questionnaires. Handheld flow meters reported a pooled high sensitivity of 79.9% (95% CI 74.2--84.7%) in ever-smokers and 87.9% in adults with age >35 years. Conclusions: The need for better diagnosis of COPD in primary healthcare can be addressed by using of COPD Diagnostic Questionnaire alone or in combination with hand-held flow meters. There is scope for more implementation research on the domain.

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