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Table 2 Descriptive statistics of study subjects

From: Impact of the 2014 coinsurance rate revision for the elderly on healthcare resource utilization in Japan

  Coinsurance rates change
20% reduction 10% reduction
(N = 3929) (N = 3276)
Gender, N (%)
 Male 1779 (45.3%) 1420 (43.3%)
 Female 2150 (54.7%) 1856 (56.7%)
Type of health insurance, N (%)
 JHIA 454 (11.6%) 407 (12.4%)
 NHI 3475 (88.4%) 2869 (87.6%)
Healthcare resource utilization in all settings
Healthcare expenditure, mean (sd)
  Before reaching 70 years old 4255.0 (9168.0) 3664.4 (7178.2)
  After reaching 70 years old 5225.9 (10,388.0) 4853.2 (9751.7)
  Overall 9480.9 (16,631.8) 8517.7 (14,773.5)
  Healthcare expenditure > 0 3669 (93.4%) 3050 (93.1%)
Treatment days (No. of ambulatory visit/ length of inpatient stay), mean (sd)
  Before reaching 70 years old 23.4 (36.8) 22.3 (35.9)
  After reaching 70 years old 28.8 (41.8) 26.3 (40.1)
  Overall 52.2 (73.7) 48.6 (72.1)
Healthcare resource utilization for outpatient care
Healthcare expenditure, mean (sd)
  Before reaching 70 years old 2448.6 (3116.3) 2426.6 (3220.2)
  After reaching 70 years old 3018.4 (3590.0) 2770.7 (3663.1)
  Overall 5467.0 (6257.2) 5197.3 (6590.4)
  Outpatient expenditure > 0 3661 (93.2%) 3036 (92.7%)
No. of ambulatory visit, mean (sd)
  Before reaching 70 years old 19.0 (24.6) 18.4 (22.1)
  After reaching 70 years old 23.3 (28.7) 20.8 (24.0)
  Overall 42.4 (49.6) 39.2 (43.1)
Healthcare resource utilization for inpatient care
Healthcare expenditure, mean (sd)
  Before reaching 70 years old 1806.4 (8180.6) 1237.9 (6113.4)
  After reaching 70 years old 2207.5 (9252.3) 2082.5 (8623.4)
  Overall 4014 (14,381.7) 3320 (12,487.0)
  Inpatient expenditure > 0 860 (21.9%) 664 (20.3%)
No. of admission, mean(sd)
  Before reaching to 70 years old 0.2 (0.5) 0.1 (0.4)
  After reaching to 70 years old 0.2 (0.7) 0.2 (0.6)
  Overall 0.4 (1.0) 0.3 (0.8)
Length of inpatient stay, mean (sd)
  Before reaching 70 years old 4.4 (26.8) 3.9 (28.9)
  After reaching 70 years old 9.8 (53.6) 9.4 (59.0)
  Overall 5.5 (30.3) 5.5 (32.6)
  1. NHI National Health Insurance, JHIA Japanese Health Insurance Association