The changes in the slopes of the total APF X-ray rate and LOS were not statistically significant, although the shifts in both to a negative trend after the campaign might be notable.
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Effectiveness of a radiation reduction campaign targeting children with gastrointestinal symptoms in a pediatric emergency department.
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The sentences
The slope of total APF X-ray exhibited a positive trend before the campaign but was negative after the campaign (Fig. 1 A).