Influence of a guideline or an additional rapid strep test on antibiotic prescriptions for sore throat: the cluster randomized controlled trial of HALS (Hals und Antibiotika Leitlinien Strategien)

Table 3 Prescription of antibiotics (AB)

	Descriptive Statistics				Mixed effects, cluster corrected for GP practice, logistic regression with AB prescription as outcome and study group as influencing parameter*
	Number of prescriptions (%)	Number of prescriptions 95% Confidence interval	p**	Delayed prescriptions in all AB prescriptions (%)	Odds Ratio	95% Conf. Interval	p
GL-group	97/187 (52)	45% – 59%	0,162	6/97 (6)	2.32	0.81 – 6.66	0.118
GL-RADT-group	74/172 (43)	36% – 51%		5/74 (7)	1.05	0.36 – 3.04	0.934
UC-group	68/157 (43)	35% – 51%		2/68 (3)	1 (reference)
Total	239/516 (46)			13/239 (5)

^*N = 516 (2 cases missing in GL- and UC-group each); ICC (95% CI): 0.37 (0.23 – 0.54), **Chi²-test comparing the three arms

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