Table 1

Linear regression models—associations between characteristics of the emergency departments (EDs) with antibiotic prescription and hospitalisation

	β coefficients	95% CI (lower)	95% CI (upper)	t value	Pr (>\|t\|)
Variables associated with percentage of cases who received antibiotic prescription†
(Intercept)	34.9	25.3	44.6	7.68	<0.001	***
Geographical location—north	20.1	9.69	30.5	4.09	0.001	**
Geographical location—south	33.1	20.4	45.9	5.51	<0.001	***
Number of ft paediatricians in ED in 2019/2020	0.587	−0.145	1.32	1.70	0.108
Number of ft residents in paediatrics in 2019/2020	−0.300	−0.441	−0.159	−4.52	<0.001	***
Variables associated with percentage of cases hospitalised (in the ward or in the short stay unit)‡
(Intercept)	6.34	−3.29	16.0	4.26	0.171
Geographical location—north	−4.71	−9.76	0.332	2.23	0.064
Geographical location—south	24.7	17.8	31.5	3.02	<0.001	***
University centre—yes	−13.1	−18.6	−7.67	2.42	<0.001	***
% Age 5–15 years	0.130	−0.0683	0.329	0.0878	0.172
% Maximal temperature§ ≥40°C	−0.781	−1.20	−0.360	0.186	0.002	**
% SpO₂ ≥90%	3.93	−0.782	8.64	2.08	0.092	.
% CRP requested	0.309	0.156	0.462	0.0676	0.001	**
% RX requested	−0.194	−0.432	0.0442	0.105	0.099
Children accessing the ED, per year (hundreds)	0.0574	0.0276	0.0872	0.0132	0.002	**
Ft paediatricians in ED in 2019/2020	−0.927	−1.36	−0.491	0.193	0.001	***
Ft residents in paediatrics in 2019/2020	0.250	0.177	0.324	0.0326	<0.001	***

If a p value is less than 0.05, it is flagged with one star (*). If a p value is less than 0.01, it is flagged with two stars (**). If a p value is less than 0.001, it is flagged with three stars (***).
†Multiple R-squared: 0.840, adjusted R-squared: 0.800, F-statistic: 21.06 on 4 and 16 DF, p value: <0.001.
‡Multiple R-squared: 0.963, adjusted R-squared: 0.917, F-statistic: 21.06 on 11 and 9 DF, p value: <0.001.
§Reported by parents or measured in ED.
CRP, C reactive protein; Ft, full time; RX, chest X ray; SpO2, oxygen saturation.