Cross-sectional study of the association between triglyceride glucose-body mass index and obstructive sleep apnea risk

Table 3 Subgroup and meditation analysis

Subgroups	OR (95%CI)	P value	P for interaction	Mediation %
BMI			< 0.001	0.03
< 25	1.30 (1.01-1.65)	0.046
25-29.9	1.06 (0.92-1.21)	0.448
≥ 30	1.46 (1.28-1.67)	< 0.001
Age			< 0.001	4.885
18-39	1.31 (1.10,1.56)	0.003
40-59	1.29 (1.16-1.44)	< 0.001
≥ 60	1.18 (1.02-1.37)	0.029
Sex			< 0.001	7.34
Female	1.39 (1.20-1.60)	< 0.001
Male	1.20 (1.07-1.34)	0.001
Marital status			< 0.001	3.82
Others	1.40 (1.22-1.61)	< 0.001
Married	1.19 (1.06-1.33)	0.002
Diabetes			0.01	1.52
No	1.30 (1.18-1.43)	< 0.001
Yes	1.16 (0.93-1.43)	0.182
Smoking			0.06
No	1.39 (1.22-1.58)	< 0.001
Yes	1.19 (1.05-1.34)	0.005
Hypertension			< 0.001	8.12
No	1.25 (1.11-1.41)	< 0.001
Yes	1.26 (1.10-1.44)	< 0.001

The results of subgroup analysis were adjusted for all covariates considered in model 3 except effect modifier. Body mass index was categorized as < 25, 25-29.9, and ≥ 30 kg/m², which corresponded to normal or low weight, overweight, and obesity, respectively. BMI: Body mass index; CI: Confidence interval; OR: Odds ratio.