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Visualization and Analysis of Blood Flow and Oxygen Consumption in Hepatic Microcirculation: Application to an Acute Hepatitis Model
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Decrease in blood donation rates in Japan: a time series analysis.

Yutaka Owari1, Nobuyuki Miyatake2, Hiromi Suzuki2

  • 1Shikoku Medical College, Utazu, Kagawa, Japan.

Revista Brasileira De Epidemiologia = Brazilian Journal of Epidemiology
|June 4, 2020
PubMed
Summary
This summary is machine-generated.

The introduction of the 400 ml blood donation (BD) program in Japan in 1986 coincided with a significant decrease in BD rates. This study suggests the program change may be a contributing factor to the observed decline in blood donations.

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Area of Science:

  • Public Health
  • Hematology
  • Health Policy

Background:

  • Blood donation (BD) rates are critical for maintaining adequate blood supply.
  • Understanding factors influencing BD rates is essential for effective blood resource management.
  • The introduction of a 400 ml BD program in Japan in 1986 marked a policy change.

Purpose of the Study:

  • To investigate the impact of the 400 ml blood donation program on overall BD rates.
  • To determine if the 1986 program change was a significant factor in the decline of BD rates.

Main Methods:

  • Utilized interrupted time series analysis on annual blood donation rates from 1965 to 2012.
  • Compared blood donation rates in the pre-intervention (before 1986) and post-intervention periods.
  • Employed autoregressive integrated moving average (ARIMA) models to analyze trends and changes in slope.

Main Results:

  • A significant negative change in slope was observed following the introduction of the 400 ml BD program.
  • The analysis indicated a decrease in the rate of blood donation after the program's implementation.
  • Statistical models (ARIMA) confirmed the intervention's impact, with adjusted R-squared values of 0.963 and 0.930.

Conclusions:

  • The 400 ml blood donation program implemented in 1986 is a potential cause for the observed decrease in blood donation rates in Japan.
  • Further research may be warranted to explore other contributing factors to the decline in blood donations.