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Table 3 Odds ratio# (95% confidence interval) of obesity before and after 40 years old

From: Gut bacteria Akkermansia is associated with reduced risk of obesity: evidence from the American Gut Project

  Age groups (year)
20–39 40–99
BMI 23.3 ± 4.2 24.9 ± 5.0
Normal, n, (%) 1752 (74.7) 1752 (58.8)
Overweight, n, (%) 445 (19.0) 445 (28.8)
Obesity, n, (%) 149 (6.4) 149 (12.4)
Model 1a, OR (95% CI) 0.20 (0.04–0.65)*** 0.78 (0.64–0.92)
Model 2b, OR (95% CI) 0.19 (0.03–0.62)*** 0..77 (0.64–0.91)
  1. aModel 1 was adjusted for sex
  2. bModel 2 was additionally adjusted for diet type, smoking and alcohol drinking and country
  3. #The Obesity risk of elevating 10% abundance of Akkermansia
  4. ***OR differences between age groups were significant with P values of < 0.0001 by Mann–Whitney U-test