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Table 3 The impact of covariates on the development trends of self-reported overall QoL in the 3-class solution

From: Classifying and characterizing the development of self-reported overall quality of life among the Chinese elderly: a twelve-year longitudinal study

Covariates High-level Steady Group Mid-level Steady Group
OR 95% CI OR 95% CI
Reference: the Low-level Growth Group
 Basic variables (2002)
  Age 1.02 (0.99–1.05) 0.99 (0.97–1.01)
  Gender, male 2.84*** (2.02–3.98) 0.73 (0.57–1.94)
  Ethnicity, Han 3.21** (1.44–7.16) 1.10 (0.70–1.72)
  Financial resources, enough 1103.03*** (152.00–8004.62) 81.25*** (54.68–120.74)
  Smoking status, current smoker 0.78 (0.55–1.12) 0.63 (0.48–1.44)
  Drinking status, current drinker 1.52 (1.07–2.17) 0.97 (0.72–1.29)
 Dietary variables (2002)
  Eat fresh fruit 23.31*** (12.82–42.37) 6.30*** (4.78–8.30)
  Eat meat 4.44*** (2.67–7.38) 2.16*** (1.59–2.91)
  Eat fish 6.02*** (3.80–9.55) 1.69*** (1.30–2.19)
  Eat eggs 2.83*** (1.75–4.57) 1.91*** (1.39–2.63)
  Drink tea 2.20*** (1.59–3.05) 1.68*** (1.30–2.16)
 Functional variables (2002)
  Bathing disability 1.98 (0.48–2.65) 1.10 (0.36–3.37)
  Dressing disability 0.33 (0.07–1.59) 0.13** (0.03–0.51)
  Toileting disability 0.77 (0.13–4.65) 0.52 (0.12–2.19)
  Transferring disability 0.58 (0.11–3.17) 0.08* (0.01–0.70)
 Continence disability
  Feeding disability 0.77 (0.13–4.65) 0.21 (0.04–1.25)
 Behavioral variables (2002)
  Do physical labor regularly 0.12*** (0.07–0.19) 0.71 (0.45–1.12)
  Do housework 0.23*** (0.15–0.36) 1.09 (0.72–1.67)
  Read newspapers/books 23.05*** (14.97–35.50) 1.69** (1.17–2.45)
  Watch TV or listen to the radio 11.17*** (5.51–22.68) 1.96*** (1.46–2.63)
  Take part in some social activities 25.29*** (15.97–40.08) 1.28 (0.83–1.96)
  1. All the elderly did not exhibit continence disability
  2. OR odds ratio, 95% CI 95% Confidence Interval
  3. *p < 0.05
  4. **p < 0.01
  5. ***p < 0.001