. 2020 Sep 23;10:15528. doi: 10.1038/s41598-020-72481-x

Table 3.

Independent predictors of serum levels of active TGF-β1 in obese and non-obese OSA patients with melanoma.

	Unstandardized regression coefficients		95% CI for B		Standardized regression coefficients	P value	r²	r² change
	B	S.E	Lower limit	Upper limit	Beta	P value	r²	r² change
Non obese OSA patients
Leptin level (ng mL⁻¹)	2.180	0.717	0.760	3.601	0.269	0.001	0.091	0.091
AHI (h⁻¹)	0.156	0.074	0.011	0.302	0.188	0.036	0.125	0.034
Constant	− 1.737	2.862	− 7.406	3.931	–	0.545	–	–
Obese OSA patients
Leptin level (ng ml⁻¹)	3.993	1.263	1.466	6.520	0.381	0.002	0.145	0.145
Constant	− 6.749	5.609	− 17.971	4.474	–	0.234	–

AHI apnea–hypopnea index; S.E. standard error; CI confidence interval.