Findings

What do systematic reviews say?

2 questions · 2 findings · 2 reviews · All outcomes

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No studies found 0 · 0%GRADE not reported 2 · 100%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Vitamin D vs placebo or control

High density lipoprotein · Adults (general population)

Meta-analysis of randomised trials of vitamin D supplementation for High density lipoprotein: WMD -0.14 (95% CI -0.99 to 0.71), not statistically significant. Umbrella review outcome-level evidence grade: Substantial effect unlikely.

1 finding from 1 review

Vitamin D and multiple health outcomes: umbrella review of systematic reviews and meta-analyses of observational… 2014 All outcomes
WMD -0.14 [-0.99, 0.71]
8 studies
GRADE not reported

Low socioeconomic position and adverse behavioural factors vs Higher socioeconomic position and fewer adverse behaviours

Systemic inflammation (C-reactive protein) and periodontal disease progression · General-population adults (German cohort)

In one 5-year longitudinal study, accumulation of low socioeconomic and behavioural factors was associated with greater periodontal disease progression and higher C-reactive protein; not pooled (ungraded).

1 finding from 1 review

Social-Biological Interactions in Oral Disease: A 'Cells to Society' View. 2016 All outcomes
5-year follow-up · General adult population, Germany (Study of Health in Pomerania)
no estimate extracted
1 study · 3300 participants
GRADE not reported