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Table 4 Proportion of azithromycin-resistant (AzmR) and macrolide-inducible clindamycin resistant (iMLSB) S. aureus isolates 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

Survey

Total

Resistant (%)

Crude OR (95% CI)

p-value

Adjusted ORa (95% CI)

p-value

Overtime

 AzmR

  CSS-1

102

37 (36.3)

1

 

1

 

  CSS-2

161

142 (88.2)

13.13 (7.67–22.48)

<0.001

13.01 (7.77–21.80)

<0.001

  CSS-3

30

25 (83.3)

8.78 (1.11–69.25)

0.039

8.56 (1.03–71.34)

0.047

 iMLSB

  CSS-1

102

24 (23.5)

1

 

1

 

  CSS-2

161

128 (79.5)

12.61 (8.33–19.09)

<0.001

12.52 (7.90–19.85)

<0.001

  CSS-3

30

20 (66.7)

6.50 (3.14–13.44)

<0.001

6.39 (3.22–12.66)

<0.001

Between treatment arms

 AzmR

  1×

25

6 (24.0)

1

 

1

 

  3×

30

25 (83.3)

15.83 (1.97–127.01)

0.009

15.88 (1.99–126.54)

0.009

 iMLSB

  1×

25

3 (12.0)

1

 

1

 

  3×

30

20 (66.7)

14.67 (2.43–88.41)

0.003

18.83 (3.22–110.05)

0.001

  1. aadjusted for age and gender