1. Association between obesity and kidney disease: A systematic review and meta- analysis 
Y. Wang, X. Chen, Y. Song, B. Caballero, L.J. Cheskin 
Kidney International 
Volume 73, Issue 1, Pages (January 2008)
DOI: /sj.ki
Copyright © 2008 International Society of Nephrology Terms and Conditions

2. Figure 1
Pooled random-effects estimate of RR and 95% CI for the association between obesity and KD based on cohort studies in the general populations. (a) Overweight (25≤BMI<30) vs normal weight. Test for heterogeneity: Q=37.11, P=0.003; pooled RR (95% CI): 1.40 (1.30–1.50). (b) Obesity (BMI≥30) vs normal weight. Test for heterogeneity: Q=40.96, P<0.001; pooled RR (95% CI): 1.83 (1.57–2.13).
Kidney International  , 19-33DOI: ( /sj.ki )
Copyright © 2008 International Society of Nephrology Terms and Conditions

3. Figure 2
Funnel plot regarding RR on a log scale on its standard error for the 18 separated cohorts included in the meta-analysis. (a) Overweight (25≤BMI<30) vs normal weight. (b) Obesity (BMI≥30) vs normal weight. Horizontal lines indicate the random-effects pooled estimates of RRs and 95% CIs; sloping lines represent the expected 95% CIs for a given standard error, assuming heterogeneity between studies. Neither the Begg's adjusted rank correlation tests nor the Egger's regression asymmetry test is significant for overweight or obesity, P=0.21 and 0.32 for overweight and P=0.96 and 0.88 for obesity, respectively.
Kidney International  , 19-33DOI: ( /sj.ki )
Copyright © 2008 International Society of Nephrology Terms and Conditions