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Table 2 Results of the mediation analysis

From: Does social cohesion mediate neighbourhood effects on mental and physical health? Longitudinal analysis using German Socio-Economic Panel data

Neighbourhood characteristic Direct effect Indirect effect Total effect t-statistic
Sobel test
p-value Sobel test Proportion mediation
Mental health 2004–2008-2014     
β-coefficient (mediator: social cohesion): 1.93a   
Environmental 1.21a 0.16b 1.37a 6.50 < 0.001 0.12
Built 0.87a 0.13b 1.00a 5.31 < 0.001 0.13
Geographical 0.25a 0.00 0.25a 0.31 0.38
Institutional 0.60a −0.03b 0.57a −2.18 0.02 0.04
Physical health 2004–2008     
β-coefficient (mediator: social cohesion): 1.75a   
Environmental 0.71a 0.15b 0.87a 4.03 < 0.001 0.17
Built 1.07a 0.12b 1.20a 3.46 < 0.001 0.10
Geographical 0.10 0.00 0.10 0.23 0.38
Institutional 0.61a −0.02b 0.59a −1.57 0.06
Physical health 2004–2014     
β-coefficient (mediator: social cohesion): 2.38a   
Environmental 0.71a 0.20b 0.91a 5.48 < 0.001 0.23
Built 1.07a 0.16b 1.21a 4.71 < 0.001 0.13
Geographical 0.10 0.00 0.10 0.31 0.38
Institutional 0.61a −0.03b 0.59a −2.13 0.02 0.05
  1. N: 15518 measures of health on 10,013 participants
  2. asignificant at 5% level
  3. bα-coefficient significant at 5% level. Measure for physical and mental health provided by the SF-12 questionnaire