Table 4 Duration of interval between penicillin injections as risk factor for throat colonization with BHS
Interval between antibiotic prophylaxis | Culture positive | Culture negative | OR (95Â % CI) | p-value |
|---|---|---|---|---|
<16 days (n = 98) | 15 | 83 | 1 |  |
17–21 days (n = 25) | 5 | 20 | 1.4(0.5–4.3) | 0.57 |
22–28 days (n = 50) | 16 | 34 | 2.6(1.2–5.9) | 0.02 |
≥29 days (n = 38) | 15 | 23 | 3.6(1.5–8.5) | 0.003 |