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Table 3 Odds ratios (ORs)a of less good self-rated health, by occupational class and educational level, in four distinctive survey years

From: Trends and socioeconomic inequalities in self-rated health in Japan, 1986–2016

Survey year

1986b

1995c

2010d

2016e

ORa

95% CI

ORa

95% CI

ORa

95% CI

ORa

95% CI

Men

 Occupational class (EGP scheme, aged 25–64)

  Upper non-manual workers (I+II)

1.00

(Reference)

1.00

(Reference)

1.00

(Reference)

1.00

(Reference)

  Lower non-manual workers (III)

1.09

(1.01–1.18)

1.06

(0.99–1.14)

1.12

(1.07–1.17)

1.20

(1.15–1.26)

  Manual workers (V+VI+VIIa)

1.15

(1.06–1.23)

1.10

(1.03–1.18)

1.21

(1.16–1.26)

1.27

(1.21–1.33)

  Farmers (IVc+VIIb)

0.92

(0.82–1.04)

0.95

(0.85–1.06)

1.03

(0.94–1.12)

1.18

(1.07–1.29)

  Self-employed (IVa+b)

1.10

(1.02–1.19)

1.05

(0.98–1.13)

1.02

(0.97–1.08)

1.08

(1.01–1.14)

 Educational level (aged 25–64)

  High (ISCED: 5–8)

N/A

 

N/A

 

1.00

(Reference)

1.00

(Reference)

  Middle (ISCED: 3, 4)

  

1.22

(1.18–1.27)

1.34

(1.29–1.38)

  Low (ISCED: 1, 2)

  

1.47

(1.39–1.56)

1.75

(1.63–1.88)

 Educational level (aged 65–94)

  High (ISCED: 5–8)

N/A

 

N/A

 

1.00

(Reference)

1.00

(Reference)

  Middle (ISCED: 3, 4)

  

1.34

(1.20–1.51)

1.34

(1.20–1.48)

  Low (ISCED: 1, 2)

  

1.48

(1.31–1.66)

1.54

(1.38–1.72)

Women

 Occupational class (EGP scheme, aged 25–64)

  Upper non-manual workers (I+II)

1.00

(Reference)

1.00

(Reference)

1.00

(Reference)

1.00

(Reference)

  Lower non-manual workers (III)

1.08

(1.00–1.16)

1.08

(1.02–1.15)

1.06

(1.01–1.10)

1.11

(1.07–1.16)

  Manual workers (V+VI+VIIa)

1.12

(1.03–1.21)

1.14

(1.06–1.23)

1.19

(1.12–1.26)

1.34

(1.27–1.43)

  Farmers (IVc+VIIb)

0.95

(0.84–1.07)

1.05

(0.94–1.19)

1.00

(0.90–1.11)

1.25

(1.12–1.40)

  Self-employed (IVa+b)

1.01

(0.91–1.11)

1.03

(0.93–1.13)

0.93

(0.85–1.02)

0.86

(0.78–0.96)

 Educational level (aged 25–64)

  High (ISCED: 5–8)

N/A

 

N/A

 

1.00

(Reference)

1.00

(Reference)

  Middle (ISCED: 3, 4)

  

1.22

(1.17–1.28)

1.32

(1.26–1.37)

  Low (ISCED: 1, 2)

  

1.74

(1.61–1.88)

2.03

(1.87–2.21)

 Educational level (aged 65–94)

  High (ISCED: 5–8)

N/A

 

N/A

 

1.00

(Reference)

1.00

(Reference)

  Middle (ISCED: 3, 4)

  

1.25

(1.09–1.43)

1.24

(1.11–1.40)

  Low (ISCED: 1, 2)

  

1.54

(1.34–1.76)

1.49

(1.32–1.68)

  1. 95% CI 95% Confidence Interval, EGP scheme Erikson-Goldthorpe-Portocarero scheme, ISCED International Standard Classification of Education
  2. Low (ISCED: 1, 2): Elementary school/junior high school graduation
  3. Middle (ISCED: 3, 4): High school/technical professional school graduation
  4. High (ISCED: 5–8): Two-year college/university graduation, or more
  5. a Estimates were calculated using proportional odds logistic regression models, controlling age category (5-years): Model 2. The odds ratio is the probability of less good self-rated health compared with the reference group
  6. b Year of starting the survey
  7. c Year of best self-rated health in Japan, between 1986 and 2016
  8. d Year of Japanese’ worst self-rated health for working aged men and women, between 1986 and 2016, and the year of starting the survey including educational background
  9. e The latest survey