Figure 3 : Egger’s publication bias plots and Begg’s funnel plots of the cohort studies that investigated abnormal BMI (underweight, overweight and obesity) and LC risk.

From: Body mass index and risk of lung cancer: Systematic review and dose-response meta-analysis

Figure 3

Begg’s funnel plot: (a) Underweight vs. normal weight; (b) Overweight vs. normal weight; (c) Obesity vs. normal weight. Egger’s test: (d) Underweight vs. normal weight; (e) Overweight vs. normal weight; (f) Obesity vs. normal weight. Underweight, BMI ≤ 18.5 kg/m2; Normal weight, BMI = 18.5–24.9 kg/m2; Overweight, BMI = 25–29.9 kg/m2; Obesity, BMI ≥ 30 kg/m2; BMI, body mass index; LC, lung cancer; S.E., standard error; RR, relative risk; Area of a circle represents the weight of individual study. The pseudo 95%CI is computed as part of the analysis that produces the funnel plot.