Barely Significant
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“of marginal significance”

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In the literature

When removing the studies conducted by Shalev et al and Hahn et al in the subgroup analysis of cohort studies, respectively, although the p values for diabetes and AMD became insignificant, the direction of ORs was kept and associations of marginal significance were revealed (removing study by Shalev et al: OR, 1.04; 95% CI, 0.99–1.10; Hahn et al: OR, 1.12; 95% CI, 0.98–1.29).
But, when these tests are found abnormal, the nephropathy has already reached the irreversible phase that may lead to renal insufficiency.[ 17 ] The renal effects of Pb, consisting mainly in a decline of the GFR without proteinuria, have been reported in workers with a longstanding exposure to Pb, with a Pb-B of 600 μg/L or more.[ 20 ] So far, studies conducted on populations of workers with a lower level of exposure to Pb have disclosed no renal effect or only infraclinical changes of marginal significance.[ 12 , 13 ] In humans, a reduced GFR (i.e. indicated by decreases in the creatinine clearance or increases in the serum creatinine concentration) has been observed in association with exposures resulting in average PbBs < 20ug/dL.
Renal effects of environmental and occupational lead exposure.
Indian J Occup Environ Med · 2008 · PMC2796746