Journal
AMERICAN JOURNAL OF PREVENTIVE MEDICINE
Volume 63, Issue 1, Pages E1-E9Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.amepre.2021.12.025
Keywords
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Funding
- Kaiser Permanente North-ern California Community Bene fi t Grant
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This study found that patients who were familiar with telemedicine services before a disaster had lower rates of emergency and hospital utilization for certain ambulatory care sensitive conditions in the year following the disaster. Familiarity with telemedicine may help reduce the use of emergency and hospital services following disasters.
Introduction: In this study, we examined the association between telemedicine use before a disaster and utilization of emergency or hospital services for ambulatory care sensitive conditions post-disaster. Methods: Difference-in-differences analyses were conducted in 2020-2021 to assess pre- to post-fire changes in emergency or hospital utilization for 5 ambulatory care sensitive conditions: asthma, diabetes, hypertension, coronary artery disease, and heart failure across all Kaiser Permanente Santa Rosa patients (N=108,113) based on telemedicine utilization before the 2017 Tubbs wildfire. Inverse probability of treatment weighting was employed for cohort balancing across telemedicine familiar status. Results: Utilization for any ambulatory care sensitive condition increased from 9.03% pre-fire to 9.45% post-fire across the full cohort. Telemedicine familiarity (ref: not familiar) was associated with decreased absolute risk in pre- to post-fire inpatient and emergency department utilization for 4 conditions: asthma (absolute risk= -1.59%, 95% CI= -2.02%, -1.16%), diabetes (absolute risk= -0.68%, 95% CI= -0.89%, -0.47%), hypertension (absolute risk= -2.07%, 95% CI= -2.44%, -1.71%), and coronary artery disease (absolute risk= -0.43%, 95% CI= -0.61%, -0.24%). Telemedicine familiarity was associated with decreased relative change in pre- to post-fire utilization for 5 conditions: asthma (RRR=0.70, 95% CI=0.64, 0.75), diabetes (RRR=0.54, 95% CI=0.47, 0.63), hypertension (RRR=0.57, 95% CI=0.52, 0.62), heart failure (RRR=0.64, 95% CI=0.50, 0.82), and coronary artery disease (RRR=0.56, 95% CI=0.47, 0.67). Similar results were seen among patients residing in evacuation zones. Conclusions: Telemedicine familiarity pre-fire was associated with decreased inpatient and emergency department utilization for certain ambulatory care sensitive conditions for 1-year post-fire. These results suggest a role for telemedicine in preventing unnecessary emergency and hospital utilization following disasters. (C) 2022 American Journal of Preventive Medicine. Published by Elsevier Inc.
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