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Table 3 Direct and indirect pathways of association between indicators of socioeconomic position and diet quality mediated by Capabilities, Opportunities and Motivations 1

From: Do food-related capabilities, opportunities and motivations of adolescents mediate the association between socioeconomic position in adolescence and diet quality in early adulthood?

Model path

Direct effects (a-path)2

(95% CI)

Indirect effects

(a-path x b-path)3

(95% CI)

Total effects (c-path)4

(95% CI)

Proportion mediated5

Parental education

Total population (n = 774)

 Capability

0.007 (-0.083, 0.097)

0.001 (-0.006, 0.007)

0.031 (-0.025, 0.087)

-

 Opportunity

0.102 (-0.025, 0.230)

0.018 (-0.003, 0.039)

0.048 (-0.009, 0.105)

-

 Motivation

0.047 (-0.033, 0.128)

0.005 (-0.004, 0.014)

0.035 (-0.021, 0.092)

-

 Total6

    

Females (n = 591)

    

 Capability

0.029 (-0.108, 0.114)

0.002 (-0.007, 0.008)

0.002 (-0.083, 0.086)

-

 Opportunity

0.137 (-0.041, 0.316)

0.035 (-0.010, 0.080)

0.037 (-0.031, 0.105)

-

 Motivation

0.022 (-0.070, 0.115)

0.002 (-0.010, 0.014)

0.004 (-0.082, 0.090)

-

 Total6

    

Males (n = 183)

    

 Capability

-0.164 (-0.315, -0.013) *

-0.022 (-0.063, 0.017)

0.098 (-0.025, 0.222)

-

 Opportunity

0.046 (-0.084, 0.176)

0.003 (-0.022, 0.042)

0.131 (0.006, 0.256) *

-

 Motivation

0.123 (-0.026, 0.291)

0.001 (-0.021, 0.022)

0.121 (0.003, 0.239) *

-

 Total6

    

Area-level disadvantage

Total population (n = 774)

 

 Capability

-0.043 (-0.132, 0.047)

-0.003 (-0.010, 0.004)

-0.011 (-0.077, 0.054)

-

 Opportunity

0.113 (0.023, 0.208) *

0.021 (0.003, 0.038) *

0.012 (-0.055, 0.079)

60.9%

 Motivation

0.018 (-0.072, 0.108)

0.002 (-0.008, 0.012)

-0.006 (-0.071, 0.059)

-

 Total6

    

Females7 (n = 591)

    

 Capability

-0.065 (-0.174, 0.044)

-0.003 (-0.011, 0.005)

-0.078 (-0.208, 0.052)

-

 Opportunity

0.169 (0.053, 0.284) **

0.046 (-0.040, 0.131)

-0.029 (-0.109, 0.051)

-

 Motivation

0.036 (-0.073, 0.146)

0.005 (-0.010, 0.019)

-0.070 (-0.198, 0.059)

-

 Total6

   

-

Males (n = 183)

    

 Capability

-0.031 (-0.195, 0.131)

-0.001 (-0.009, 0.007)

0.156 (0.023, 0.288) *

-

 Opportunity

0.012 (-0.130, 0.156)

0.002 (-0.016, 0.020)

0.158 (0.024, 0.293) *

-

 Motivation

-0.043 (-0.232, 0.146)

-0.001 (-0.011, 0.009)

0.156 (0.023, 0.288) *

-

 Total6

    
  1. 1 Standardized coefficients and 95% CI for direct, indirect and total effects were derived using structural equation modelling using the Stata sem and estat commands; * and ** represent p < 0.05 and p < 0.01 respectively
  2. 2 The direct effect of SEP on each mediator are represented by paths a1-3
  3. 3 The total indirect effect of SEP on diet quality via each COM potential mediator
  4. 4 The total effect represents the sum of the total indirect and direct effects
  5. 5 The proportion mediated was calculated as the mediator-specific indirect effect divided by the total effect [a*b/ ((a1–3) * (b1–3) + c)]
  6. 6 The total also includes the joint mediating effects of Opportunity -> Capability -> Motivation, which was < 1%