Table 3.

Duration of moderately bad symptoms according to antibiotic prescription strategy

Antibiotic prescribing strategy	Duration of moderately bad symptoms: median days (IQR)	Univariate hazard ratio, (95% CI), P-value	Hazard ratio controlling for clustering and baseline severity score (95% CI), P-value	Hazard ratio controlling for propensity score (95% CI), P-value	Hazard ratio controlling for propensity score in imputed dataset (95% CI), P-value
No Antibiotic (reference) n= 587	4 (2–7)	1.00	1.00	1.00	1.00
Immediate n= 728	3 (2–5)	1.33 (1.18 to 1.50), P<0.001	1.37 (1.23 to 1.53), P<0.001	1.21 (1.07 to 1.38), P = 0.004	1.20 (1.07 to 1.3), P = 0.002
Delayed n= 197	3 (2–6)	1.15 (0.96 to 1.37), P = 0.120	1.16 (0.98 to 1.37), P = 0.084	1.10 (0.92 to 1.33), P = 0.300	1.10 (0.91 to 1.33), P = 0.316

IQR = interquartile range.