. 2021 Aug 19;2021:2096944. doi: 10.1155/2021/2096944

Table 5.

Multivariate analysis of confounding variables.

Step		B	SE	Wald	df	Sig.	Exp(B)
Step 1^a	Caffeine before sleeping	0.052	0.569	0.008	1	0.927	1.053
	Noises	0.872	0.662	1.733	1	0.188	2.391
	Obesity	0.043	0.350	0.015	1	0.902	1.044
	Constant	-2.771	0.972	8.122	1	0.004	0.063

Step 2^a	Caffeine before sleeping	0.880	0.656	1.804	1	0.179	2.412
	Noises
	Obesity	0.038	0.345	0.012	1	0.912	1.039
	Constant	-2.732	0.868	9.912	1	0.002	0.065

Step 3^a	Caffeine before sleeping	0.881	0.655	1.808	1	0.179	2.414
	Noises
	Constant	-2.663	0.597	19.881	1	0.000	0.070

Step 4^a	Constant	-1.983	0.245	65.659	1	0.000	0.138