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Table 2 Prevalence of S. aureus carriage over time and between treatment arms

From: Short-term increase in prevalence of nasopharyngeal carriage of macrolide-resistant Staphylococcus aureus following mass drug administration with azithromycin for trachoma control

Arm Survey N n (%) Crude OR (95% CI) p-value Adjusted ORa (95% CI) p-value
Over time
 3× CSS-1 414 102 (24.6) 1   1  
 3× CSS-2 417 161 (38.6) 1.92 (1.66–2.23) <0.001 1.94 (1.68–2.24) <0.001
 3× CSS-3 343 30 (8.8) 0.29 (0.24–0.36) <0.001 0.30 (0.25–0.35) <0.001
Between treatment arms
 1× CSS-3 375 25 (6.7) 1   1  
 3× CSS-3 343 30 (8.8) 1.34 (0.66–2.74) 0.419 1.47 (0.72–3.00) 0.286
  1. aadjusted for age and gender