Table 6.

Summary of findings on mixed samples with various mental health problems

Reference	Predictor variable	Outcome variable	Results (++ < 0·05 adjusted; + < 0·05 unadjusted; − non-significant)
Fleury et al. (2013) [67]	Perceived social support	Subjective quality of life	++	Social support variables at baseline accounted for 7.9% of quality of life at 18-month follow-up. Among social support dimensions, higher perception of availability of social integration (β = 0.196, t = 3.472, p = 0.001, 95% CI [0.942, 3.410]) and reassurance of worth supports (β = 0.136, t = 2.397, p = 0.017, 95% CI [0.255, 2.597]) at baseline predicted better quality of life at 18-month follow-up
Van Beljouw et al. (2010) [66]	Loneliness	Severity of depression; Severity of anxiety	++ +	A higher symptom severity in depression at 1-year follow-up was predicted by more loneliness at baseline in both multilevel univariate linear regression analyses (β = 0.89, SE = 0.17, p < 0.001) and multilevel multivariate linear regression analyses (β = 0.39, SE = 0.16, p < 0.05). Positive associations were found between more symptom severity in anxiety at 1-year follow-up and loneliness at baseline by multilevel univariate linear regression analyses (β = 0.40, SE = 0.12, p < 0.01) (but not significant in multivariate analyses)