Fig. 3
From: Vitamin B6, vitamin B12 and methionine and risk of pancreatic cancer: a meta-analysis
a The nonlinear dose-response analysis plot for the vitamin B6 intake and pancreatic cancer risk. The solid line and the long dash line represent the estimated RR and its 95% CI. Short dash line represents the linear relationship. b The linear dose-response analysis plot for the blood pyridoxal 5-phosphate (PLP) levels and pancreatic cancer risk. Adjusted relative risks and 95% CIs confidence intervals (dashed lines) are reported. The vertical axis is on a log scale