Fig. 3

Comparison of serum d-ROMs levels detected in the three BMI groups and in each PBF level group in male and female students. a In male students, a significant difference was not observed between serum d-ROMs levels and BMI, b in female students, d-ROMs levels were higher in females with a BMI of <18.5 than in other females, c in male students, a significant difference was not observed between serum d-ROMs levels and PBF grades, d in female students, the d-ROMs levels in group 5 females were significantly higher than those in group 2 and group 3 females. *P < 0.05, **P < 0.01, ***P < 0.001. PBF grades (1–5, x-axis): 1 poor, 2 (–)normal, 3 (+)normal, 4 slightly obese, 5 obese