Fig. 2

Odds ratio of obesity by relative abundance of Akkermansia. Lines represent odds ratios and 95% CI based on restricted cubic splines for relative abundance of Akkermansia with knots at the 50th and 90th percentiles. Odds ratios were estimated using a logistic regression model after adjustment for age, sex, diet type, smoking and alcohol drinking and country; P for non-linearity = 0.01. Bars represent the numbers of participants according to 100-equally-sized bins of Akkermansia abundance