PHILIP C. PRATT, M.D.; WILLIAM S. LYNN, M.D.
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To the editor: Beck and associates (1) present data comparing changes in respiratory symptoms and forced expiratory volume in 1 second (FEV1) values over a 6-year period in cotton workers and control subjects. Sometimes the data describe smokers versus nonsmokers versus ex-smokers, and sometimes, active versus retired workers. However, several crucial comparisons are absent and and care must be taken to avoid over-interpretation. Most readers will be wary of results based on subjective symptom data and will examine the more objective function measurements, reported in detail only for FEV1. Statements in the articles abstract are correct, but we wish to
PRATT PC, LYNN WS. Lung Disease in Cotton Textile Workers. Ann Intern Med. ;98:554–555. doi: 10.7326/0003-4819-98-4-554
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Published: Ann Intern Med. 1983;98(4):554-555.
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