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. 2022 Feb 2;14(2):e21842. doi: 10.7759/cureus.21842

Table 5. Adjusted multiple logistic regression of body mass index associated with tobacco smoking and consumption of caffeine products.

Note: ^#: Reference category is normal weight; ^a: reference category group is No.*Significant at P < 0.05.

Body mass index category^#		Model 3
		Variable	Odds ratio	95% confidence interval	P-value
Underweight	Energy drinks consumption^a	Yes	0.336	0.093–1.213	0.10
	Cigarette smoking^a	Yes	6.255	1.498–26.125	0.012*
	Waterpipe smoking^a	Yes	0.552	0.170–1.785	0.32
	Coffee consumption^a	Yes	0.809	0.135–4.862	0.82
	Chocolate consumption^a	Yes	0.148	0.202–6.520	0.88
	Black tea consumption^a	Yes	0.929	0.199–4.326	0.93
	Age		0.710	0.505–0.998	0.049*
	Waist circumference		0.768	0.679–0.867	<0.001*
Overweight	Energy drinks consumption^#	Yes	1.195	0.548–2.604	0.66
	Cigarette smoking^a	Yes	0.841	0.398–1.778	0.65
	Waterpipe smoking^a	Yes	0.527	0.243–1.139	0.10
	Coffee consumption^a	Yes	1.374	0.542–3.483	0.50
	Chocolate consumption^a	Yes	2.267	0.777–6.613	0.13
	Black tea consumption^a	Yes	0.400	0.149–1.074	0.07
	Age		0.927	0.765–1.123	0.44
	Waist circumference		1.352	1.265–1. 446	<0.001*
Obese	Energy drinks consumption^a	Yes	0.183	0.045–0.737	0.017*
	Cigarette smoking^a	Yes	0.832	0.228–3.039	0.78
	Waterpipe smoking^a	Yes	0.307	0.081–1.161	0.08
	Coffee consumption^a	Yes	1.121	0.208–6.033	0.89
	Chocolate consumption^a	Yes	2.192	0.391–12.294	0.37
	Black tea consumption^a	Yes	0.420	0.083–2.117	0.29
	Age		0.798	0.588–1.083	0.15
	Waist circumference		1.810	1.613–2.032	<0.001*