Table 1. COVID-19 Mortality Index and Regional Characteristics (Japan).

From: Regional Variations in Coronavirus Disease 2019 Mortality in Japan: An Ecological Study

Overall Less populated group
(<1.6 million) (n = 24)
More populated group
(≥1.6 million) (n = 23)
p-value
COVID-19 mortality index, mean (SD) 12.7 (4.0) 14.0 (4.9) 11.4 (3.0) 0.026
Number of physicians per hospital bed, mean (SD) 0.21 (0.04) 0.19 (0.03) 0.23 (0.05) 0.002
  Number of physicians per 10,000 population, mean (SD) 27.4 (4.3) 28.7 (3.6) 26.1 (4.7) 0.038
  Number of hospital beds per 10,000 population, mean (SD) 137 (35) 156 (30) 119 (28) <0.001
Number of LTCF per 10,000 population, mean (SD) 4.29 (1.4) 5.12 (1.3) 3.42 (1.0) <0.001
Aging rate (≥65 y) (%), mean (SD) 30.7 (3.1) 32.3 (3.0) 29.1 (2.4) <0.001
Table 2. Association between Regional Characteristics and COVID-19 Mortality Index in All the 47 Prefectures.

From: Regional Variations in Coronavirus Disease 2019 Mortality in Japan: An Ecological Study

Variables Univariable Multivariable※※
Correlation coefficient p-value Beta p-value
Number of physicians per hospital bed −0.386 0.007 −0.053 0.805
Number of LTCF per 10,000 population 0.397 0.006 0.099 0.643
Aging rate (≥65 y) (%) 0.471 0.001 0.362 0.094
Table 3. Association between Regional Characteristics and COVID-19 Mortality Index According to Population Size.

From: Regional Variations in Coronavirus Disease 2019 Mortality in Japan: An Ecological Study

Variables Univariable Multivariable※※
Correlation coefficient p-value Beta p-value
Less populated group (<1.6 million) (n = 24)
 Number of physicians per hospital bed −0.611 0.002 −0.543 0.024
 Number of LTCF per 10,000 population 0.352 0.091 −0.231 0.304
 Aging rate (≥65 y) (%) 0.601 0.002 0.434 0.032
More populated prefectures (≥1.6 million) (n = 23)
 Number of physicians per hospital bed −0.041 0.852 −0.139 0.628
 Number of LTCF per 10,000 population 0.098 0.656 0.293 0.409
 Aging rate (≥65 y) (%) −0.053 0.811 −0.432 0.334
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