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Effect of social distancing on injury incidence during the COVID-19 pandemic: an interrupted time-series analysis.
Cho, Yong Soo; Ro, Young Sun; Park, Jeong Ho; Moon, Sungwoo.
  • Cho YS; Department of Emergency Medicine, Chonnam National University Hospital, Gwangju, Korea.
  • Ro YS; National Emergency Medical Center, National Medical Center, Seoul, Korea ro.youngsun@gmail.com.
  • Park JH; Department of Emergency Medicine, Seoul National University Hospital, Seoul, Korea.
  • Moon S; Department of Emergency Medicine, Seoul National University Hospital, Seoul, Korea.
BMJ Open ; 12(4): e055296, 2022 04 05.
Article in English | MEDLINE | ID: covidwho-1962218
ABSTRACT

OBJECTIVES:

To evaluate the effects of social distancing on the incidence and characteristics of injuries during the COVID-19 pandemic. DESIGN AND

SETTING:

This cross-sectional study used the National Emergency Department Information System (NEDIS) database.

PARTICIPANTS:

Injured patients who visited all 402 emergency departments (EDs) between 29 February and 29 May 2020 (after-distancing), and in the corresponding period in 2019 (before distancing) to control for seasonal influences. OUTCOME

MEASURES:

The study outcome was the incidence of injury. Using the interrupted time-series analysis models, we analysed weekly trends of study outcomes in both periods (before and after distancing), the step change (the effect of intervention), and the slope change over two periods (the change in the effect over time).

RESULTS:

The incidence rates of injury per 100 000 person-days were 11.2 and 8.6 in the before-distancing and after-distancing periods, respectively. In the after-distancing period, the incidence rate of injury decreased (step change -3.23 (95% CI -4.34 to -2.12) per 100 000 person-days) compared with the before-distancing period, while the slope change was 0.10 (95% CI 0.04 to 0.24). The incidence rate ratios of all injuries and intentional injuries for the after-distancing period were 0.67 (95% CI 0.60 to 0.75) and 1.28 (95% CI 1.18 to 1.40), respectively, compared with the before-distancing period.

CONCLUSIONS:

Fewer injuries occurred after the implementation of social distancing programme compared with the same period in the previous year. However, this effect gradually decreased postimplementation.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: COVID-19 Type of study: Experimental Studies / Observational study / Prognostic study / Randomized controlled trials Limits: Humans Language: English Journal: BMJ Open Year: 2022 Document Type: Article

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Full text: Available Collection: International databases Database: MEDLINE Main subject: COVID-19 Type of study: Experimental Studies / Observational study / Prognostic study / Randomized controlled trials Limits: Humans Language: English Journal: BMJ Open Year: 2022 Document Type: Article