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Table 5 Determinants of good SRH by age group

From: Determinants of and socio-economic disparities in self-rated health in China

Variables Category 18–39 (n = 2806) 40–59 (n = 4030) 60+ (n = 2832)
OR 95% CI OR 95% CI OR 95% CI
Demographic characteristics
 Gender Female    1.00    
  Male    1.20** (1.02–1.40)   
 Marital status Divorced, separated, and widowed 1.00      
  Married 0.30** (0.12–0.75)     
  Single 0.35** (0.14–0.90)     
 Regions West 1.00   1.00    
  East 1.35** (1.01–1.80) 1.29** (1.04–1.60)   
  Middle 1.24 (0.90–1.72) 1.03 (0.84–1.27)   
  Northeast 1.21 (0.85–1.75) 0.99 (0.77–1.26)   
Socio-economic status
 Education degree Primary or no education    1.00   1.00  
  Secondary education    1.21** (1.02–1.45) 1.21** (1.00–1.46)
  College or higher    1.06 (0.76–1.46) 0.97 (0.68–1.39)
 Work status Not working 1.00   1.00   1.00  
  Non-farm work 1.25* (0.96–1.64) 2.48*** (2.02–3.03) 2.06*** (1.52–2.80)
  Farm work 0.80 (0.56–1.15) 1.75*** (1.41–2.17) 1.60*** (1.30–1.96)
 Household Income (RMB/dollars) ≤¥9,999 (or ≤ $ 1.640)    1.00    
  ¥10,000–49,999 (or $1,640–8,201)    1.48*** (1.09–1.99)   
  ¥50,000–99,999 (or $8,201–16,402)    2.10*** (1.51–2.93)   
  ≥¥100,000 (or ≥ $16,402)    1.57** (1.06–2.33)   
 Self-rated social class Low (score 1–3)    1.00    
  Middle (score 4–5)    1.26*** (1.06–1.50)   
  High (score 6–10)    1.39* (0.98–1.98)   
 Socio-economic status compared with peers Lower 1.00   1.00    
  Higher 2.67** (1.18–6.07) 2.07*** (1.26–3.42) 1.64*** (1.15–2.34)
  Similar 1.47*** (1.16–1.87) 1.33*** (1.13–1.58) 1.18* (0.97–1.42)
  Hard to say 2.17*** (1.25–3.76) 0.78 (0.52–1.18) 0.88 (0.52–1.50)
Lifestyle factors
 BMI Normal weight 1.00   1.00    1
  Underweight 0.64** (0.45–0.90) 0.64** (0.45–0.90) 0.64*** (0.49–0.84)
  Over weight 0.76* (0.55–1.03) 0.96 (0.80–1.15) 0.95 (0.77–1.17)
  Obese 0.48** (0.25–0.92) 0.63* (0.39–1.01) 0.61* (0.34–1.09)
 Physical activity Inactive      1.00  
  Active      1.33*** (1.09–1.61)
Psychosocial factors
 Life satisfaction Happy life 1.00   1.00   1.00  
  Unhappy life 0.60*** (041–0.88) 0.70*** (0.54–0.91) 0.74* (0.53–1.05)
  Average 0.72** (0.54–0.95) 0.77*** (0.63–0.93) 0.76** (0.60–0.96)
 Depression Severe 1.00   1.00    
  Mild 2.10*** (1.39–3.19) 1.65*** (1.23–2.21) 2.46*** (1.57–3.86)
  Few or no 7.50*** (5.07–11.09) 7.19*** (5.48–9.43) 10.98*** (7.19–16.76)
Relations with families and friends Good 1.00   1.00   1.00  
  Poor 0.60*** (0.41–0.85) 0.73*** (0.58–0.91) 0.78** (0.62–0.99)
  Normal 0.78** (0.61–0.99) 0.76*** (0.64–0.90) 0.85* (0.70–1.02)
Pseudo R2   0.1300   0.1895   0.1446  
  1. Multivariate model including all significant variables through backwards stepwise logistic analysis
  2. OR odds ratio; 95% CI, 95% Confidence Intervals
  3. ***p < 0.01, **p < 0.05, *p < 0.1