We summarize the associations corresponding to the top versus bottom third of the baseline FGF-23 concentrations. In studies where different measures of association were reported, we
are trying to calculate a measure of association corresponding to the top versus bottom third of FGF-23concentration .
in some studies, associations were reported for top versus bottom quintile, quartile or half of the FGF-23 distribution. in some other studies, associations were reported per unit of standard deviation (SD)

I wonder if you can help me to convert the risk ratio as reported in the studies and calculate the risk ratio and confidence interval of top versus bottom tertiles?
(ln/unit=per unit on lnFGF-23 scale; Q4vsQ1=top quartile vs bottomquartile; log/SD or ln/SD=per SD on logFGF-23/lnFGF-23 scale)

Example of the data I got is :
Author Risk ratio (95% CI) as reported
in study report1; comparison
Parker 2010 1.05 (0.85, 1.3); ln/unit
di Giuseppe 2015 1.62 (1.07, 2.45); Q4vsQ1
Ix* 2012 1.19 (0.77, 1.83); Q4vsQ1
Ix** 2012 1.29 (0.75, 2.22); Q4vsQ1
Kendrick 2011 2.44 (1.25,4.76); Q4vsQ1
Moe 2015 1.2 (1.02,1.41); log/SD