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Table 4 Mediation analysis for the association between depression and life satisfaction, mediated by nutrition

From: Life satisfaction among elderly patients in Nepal: associations with nutritional and mental well-being

 

Model 1

Model 2

Model 2

β

BCa

95% CI

β

BCa

95% CI

β

BCa

95% CI

Total effect, (c)

−0.99

−1.13, − 0.85

−1.02

− 1.16, − 0.88

−0.94

−1.08, − 0.81

Direct effect, (c’)

−0.89

−1.02, − 0.75

−0.92

−1.05, − 0.78

−0.87

−1.01, − 0.74

Indirect effect, (a X b)

− 0.10

−0.17, − 0.05

−0.10

− 0.17, − 0.05

−0.07

− 0.14, − 0.03

aRatio of indirect to total effect mediated (a X b/c)

0.11

0.05, 0.18

0.10

0.05, 0.17

0.07

0.03, 0.14

aRatio of indirect to direct effect (a X b/c’)

0.12

0.06, 0.21

0.12

0.06, 0.21

0.08

0.03, 0.16

  1. Model 1: unadjusted mediational model; Model 2: adjusted for age, and sex; Model 3: adjusted for age, sex, ethnicity, marital status, smoking, alcohol use, educational status, perception of being ignored/hated, perceived health status compared to peers
  2. Number of bootstrap samples for bias-corrected bootstrap confidence intervals: 5000
  3. β: Unstandardized coefficient; BCa: Bias-corrected and accelerated
  4. aValues are ratios of regression coefficients