Social capital and the course of depression: six-month prospective cohort study.
BACKGROUND
Previous research has found an inverse cross-sectional relationship between an individual's access to social capital (defined as resources embedded within social networks) and depression, but this relationship has not been rigorously tested in prospective research. This is the first longitudinal study to evaluate the effect of social capital on the course of depression and subjective quality of life in a clinical population.


METHODS
This was a six-month prospective cohort study of people with depression in primary care achieving a follow-up rate of 91.3% (n=158). Depression was measured with the HAD-D and social capital using the Resource Generator-UK. Potential confounding variables including socio-demographics, socio-economic status, depression history, social support, life events and attachment style were also measured.


RESULTS
Social capital had no independent effect on the course of depression, though an interaction of access to social capital and attachment style was significantly related to change in quality of life alongside multiple covariates.


CONCLUSIONS
The study used a small sample; a short follow-up period; no measure of ecological social capital; no genetic components; and only two time points.


CONCLUSIONS
Emotional support is important for the alleviation of depression. Additionally, people with depression may require a secure attachment style to derive the full benefit of their social capital.
Webber
Martin
M
King's College London, Institute of Psychiatry, United Kingdom. martin.webber@kcl.ac.uk
Huxley
Peter
P
Harris
Tirril
T
D003866:Depressive Disorder / Q000523:psychology*; D018450:Disease Progression; D005260:Female; D006801:Humans; D016014:Linear Models; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011569:Psychiatric Status Rating Scales; D011788:Quality of Life / Q000523:psychology; D012944:Social Support; D012959:Socioeconomic Factors; D013997:Time Factors