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Table 4 Number of patients able to produce good-quality sputum samples before and after SCA

From: Direct microscopy versus sputum cytology analysis and bleach sedimentation for diagnosis of tuberculosis: a prospective diagnostic study

 

Able to produce three samples (n [%])

Able to produce two or more samples (n [%])

Unable to produce any samples (n [%])

Before SCA

195 (69.6%)

237 (84.6%)

12 (4.3%)

After SCA

212 (75.7%)

246 (87.9%)

9 (3.2%)

  1. SCA = sputum cytology analysis.