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Chi-square or Fishers Exact tests (for categorical variables) and t tests (for continuous variables) were used to compare variables relevant to only two study groups (i.e., the two groups of smokers and the two groups of PLWH)

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There was a significant difference in the log-normal morphology %, where light and heavy dual smokers had the least exponential beta of log-normal morphology %, 0.43 (95% CI: 0.330.55) and 0.36 (95% CI: 0.240.53), respectively

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