Table 1 Summary of previous systematic reviews for evaluating the association between serum 25(OH) vitamin D levels and hypertension risk
From: Circulating 25-hydroxyvitamin D levels and hypertension risk after adjusting for publication bias
Author (year) | Pittas et al. [6] (2010) | Burgaz et al. [7] (2011) | Kunutsor et al. [8] (2013) | Qi et al. [9] (2017) |
|---|---|---|---|---|
Search to | Nov 2009 | Nov 2010 | Nov 2012 | May 2015 |
Selected cohort studies | 2 | 3 | 6 | 7 |
Analysis strategy | Lowest to Highest | Highest to Lowest | Top to bottom | Deficiency to Sufficient |
sRR (95% CI) | 1.76 (1.27–2.44) | 0.73 (0.63–0.84) | 0.68 (0.60–0.77) | 1.24 (1.08–1.41) |
I-squared | 0.0 | – | – | 72.1 |
Funnel plot | NC | NC | CN | CN |
Egger test (P-value) | NC | 0.36 | 0.08 | CN |