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Table 1 Cronbach’s coefficient alpha for life expectancy and three measures of healthy life expectancy according to year

From: Comparing the differences in three measures of healthy life expectancy among prefectures in Japan

  Male Female
LE DFLE-AL LE-SH DFLE-CN LE DFLE-AL LE-SH DFLE-CN
2010 (n = 47)
 LE 1.00     1.00    
 DFLE-AL 0.67 1.00    0.06 1.00   
 LE-SH 0.59 0.90 1.00   0.21 0.85 1.00  
 DFLE-CN 0.99 0.71 0.63 1.00 0.92 0.26 0.37 1.00
2013 (n = 47)
 LE 1.00     1.00    
 DFLE-AL 0.63 1.00    0.04 1.00   
 LE-SH 0.70 0.86 1.00   0.25 0.89 1.00  
 DFLE-CN 0.99 0.67 0.73 1.00 0.93 0.30 0.34 1.00
2016 (n = 46a)
 LE 1.00     1.00    
 DFLE-AL 0.57 1.00    0.15 1.00   
 LE-SH 0.72 0.87 1.00   0.47 0.80 1.00  
 DFLE-CN 0.99 0.61 0.70 1.00 0.92 0.10 0.48 1.00
  1. DFLE-AL disability-free life expectancy without activity limitation, DFLE-CN disability-free life expectancy without care need, LE life expectancy, LE-SH life expectancy with self-perceived health
  2. aThe data for Kumamoto Prefecture in 2016 are missing due to an earthquake disaster