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Table 1 Number of survey participants

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

Survey year 1986 1989 1992 1995 1998 2001
n (%) Weighted (%) n (%) Weighted (%) n (%) Weighted (%) n (%) Weighted (%) n (%) Weighted (%) n (%) Weighted (%)
Men
All population (aged 25–64) 203,913   203,336   195,401   183,361   176,448   168,541  
Occupational class (EGP scheme)
 Upper non-manual workers (I + II) 26,456 14.2 15.1 32,877 17.9 19.5 38,597 21.9 23.3 38,270 23.5 25.3 42,749 27.6 29.2 39,594 27.2 28.6
 Lower non-manual workers (III) 51,095 27.4 31.0 47,502 25.8 28.4 43,706 24.8 27.1 41,904 25.7 27.9 38,696 24.9 26.4 38,373 26.3 27.9
 Manual workers (V + VI + VIIa) 59,602 32.0 30.2 59,873 32.6 30.7 55,506 31.5 29.4 49,759 30.5 28.0 44,390 28.6 26.6 40,708 28.0 26.0
 Farmers (IVc + VIIb) 19,529 10.5 7.4 15,857 8.6 6.2 12,040 6.8 4.9 9149 5.6 4.1 7710 5.0 3.5 6548 4.5 3.4
 Self-employed (IVa + b) 29,557 15.9 16.2 27,825 15.1 15.3 26,520 15.0 15.3 23,909 14.7 14.8 21,568 13.9 14.2 20,409 14.0 14.2
 Economically inactive/unknown 17,674 19,402 19,032 20,370 21,335 22,909
Women
 All population (aged 25–64) 219,590   215,350   207,569   194,538   187,822   178,373  
Occupational class (EGP scheme)
 Upper non-manual workers (I + II) 12,252 11.0 11.1 14,683 13.1 13.3 16,292 14.7 14.8 17,313 17.0 17.3 18,031 17.7 17.7 19,110 19.1 19.0
 Lower non-manual workers (III) 48,230 43.4 48.3 49,730 44.5 48.6 52,535 47.3 51.3 50,290 49.5 53.1 52,362 51.5 54.8 53,243 53.2 55.7
 Manual workers (V + VI + VIIa) 28,153 25.3 23.5 29,428 26.3 24.4 26,841 24.2 22.0 21,843 21.5 18.9 19,325 19.0 17.1 17,118 17.1 15.5
 Farmers (IVc + VIIb) 15,405 13.9 10.7 11,728 10.5 8.1 8987 8.1 6.1 6435 6.3 5.0 5941 5.8 4.5 4920 4.9 4.0
 Self-employed (IVa + b) 7027 6.3 6.3 6162 5.5 5.6 6328 5.7 5.7 5725 5.6 5.6 6013 5.9 6.0 5711 5.7 5.8
 Economically inactive/unknown 108,523 103,619 96,586 92,932 86,150 78,271
Survey year 2004 2007 2010 2013 2016    
n (%) Weighted (%) n (%) Weighted (%) n (%) Weighted (%) n (%) Weighted (%) n (%) Weighted (%)    
Men
 All population (aged 25–64) 144,887   142,766   130,938   143,335   128,787     
Occupational class (EGP scheme)
 Upper non-manual workers (I + II) 34,789 29.7 31.2 45,240 38.0 40.0 38,274 35.4 37.3 41,632 35.7 37.4 38,257 36.0 38.0    
 Lower non-manual workers (III) 29,487 25.2 26.5 28,837 24.2 25.0 27,123 25.1 26.1 30,421 26.1 26.9 27,297 25.7 26.7    
 Manual workers (V + VI + VIIa) 31,869 27.2 25.4 25,534 21.4 19.9 25,909 24.0 22.2 28,690 24.6 22.9 27,285 25.7 23.5    
 Farmers (IVc + VIIb) 4554 3.9 2.8 4026 3.4 2.3 4159 3.8 2.7 4354 3.7 2.7 3778 3.6 2.5    
 Self-employed (IVa + b) 16,352 14.0 14.2 15,423 13.0 12.8 12,608 11.7 11.7 11,558 9.9 10.2 9735 9.2 9.3    
 Economically inactive/unknown 27,836 23,706 22,865 26,680 22,435    
Educational level (aged 25–64)
 High (ISCED: 5–8) N/A    N/A    43,165 35.3 39.3 47,687 36.3 40.3 44,372 38.9 43.2    
 Middle (ISCED: 3, 4)      67,620 55.3 52.0 72,616 55.3 52.0 62,310 54.6 50.9    
 Low (ISCED: 1, 2)      11,429 9.4 8.7 10,944 8.3 7.7 7384 6.5 5.9    
Educational level (aged 65–94)
 High (ISCED: 5–8) N/A    N/A    6745 16.1 19.6 9745 17.6 21.6 11,501 20.2 24.6    
 Middle (ISCED: 3, 4)      18,179 43.3 43.3 25,575 46.2 45.6 27,819 48.8 47.4    
 Low (ISCED: 1, 2)      17,026 40.6 37.0 20,068 36.2 32.8 17,703 31.0 27.9    
Women
 All population (aged 25–64) 154,877   152,551   140,212   153,341   136,789     
Occupational class (EGP scheme)
 Upper non-manual workers (I + II) 14,433 23.6 23.7 18,385 26.9 26.9 21,424 24.9 24.7 24,509 25.9 25.2 23,647 26.5 25.9    
 Lower non-manual workers (III) 32,380 53.0 54.8 35,975 52.6 54.7 47,944 55.8 57.9 53,770 56.7 58.6 50,432 56.5 58.4    
 Manual workers (V + VI + VIIa) 8975 14.7 13.0 8399 12.3 10.7 10,126 11.8 10.8 10,522 11.1 10.3 10,034 11.2 10.4    
 Farmers (IVc + VIIb) 1875 3.1 2.5 1633 2.4 1.9 2633 3.1 2.3 2528 2.7 2.0 2176 2.4 1.8    
 Self-employed (IVa + b) 3481 5.7 6.1 3956 5.8 5.9 3821 4.4 4.5 3479 3.7 3.9 3034 3.4 3.6    
 Economically inactive/unknown 93,733 84,203 54,264 58,533 47,466    
Educational level (aged 25–64)
 High (ISCED: 5–8) N/A    N/A    41,362 32.3 35.5 46,178 33.5 36.6 43,571 36.7 40.1    
 Middle (ISCED: 3, 4)      77,820 60.7 57.9 83,128 60.3 57.6 69,891 58.8 55.6    
 Low (ISCED: 1, 2)      9020 7.0 6.6 8493 6.2 5.8 5321 4.5 4.3    
Educational level (aged 65–94)
 High (ISCED: 5–8) N/A    N/A    2996 5.6 6.7 4814 6.8 8.4 6114 8.7 10.6    
 Middle (ISCED: 3, 4)      24,346 45.4 47.8 35,240 49.8 52.2 37,950 53.7 55.5    
 Low (ISCED: 1, 2)      26,304 49.0 45.4 30,697 43.4 39.4 26,590 37.6 33.9    
  1. 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