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Table 8 Meta-regression analysis of LDL between smokers and non-smokers

From: Relationship of cardiometabolic parameters in non-smokers, current smokers, and quitters in diabetes: a systematic review and meta-analysis

Covariate N Studies Coefficient (95% CI) p value
Mean study age 6 0.003 (−0.009, 0.014) 0.052
Study age criteria (under 22 or over 18) 6 0.067 (−0.365, 0.499) 0.691
Type I or type II diabetes 5 −0.05 (−0.74, 0.63) 0.825
Male (percent) 6 0.002 (−0.006, 0.010) 0.522
Study design 6 0.062 (−0.483, 0.608) 0.767
Duration smoked Not reported N/A N/A