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The incidence of radiologically apparent Coal Worker’s Pneumoconiosis (CWP) among 418 bituminous coal miners was 45.2%. The incidence rose as the number of years of underground work increased. Among 243 smoking miners CWP was noted in 54.7% individuals compared to 32% of 175 non-smoking miners. The prevalence of CWP was 1.7 times higher among smokers than non-smokers and it was statistically significant.
