Improving ECG Services at a Children’s Hospital: Implementation of a Digital ECG System

Figure 5

Hospital inpatient and outpatient volumes during the study period. These figures demonstrate that while the total number of ECGs interpreted after the introduction of the digital ECG system markedly increased, there was no significant increase in total hospital admissions (a), total ambulatory visits (b), or inpatient pediatric cardiology volume (c) that could have accounted for that increase.

(a) Total inpatient hospital admission (—pediatric hospital admissions, -bar—mean, LCL—lower control limit, and UCL—upper control limit)

(b) Total ambulatory (outpatient) visits during the study period (—ambulatory pediatric visits, -bar—mean, LCL—lower control limit, and UCL—upper control limit)

(c) Inpatient pediatric cardiology volume during the study period (—pediatric cardiology inpatient volume, -bar—mean, LCL—lower control limit, and UCL—upper control limit)