Table 4.

Multiple linear regression assessing predictors of water intakes among US adults aged ≥20 years (n 9666), National Health and Nutrition Examination Survey (NHANES) 2011–2014^†

	Total plain water‡ (ml)		Tap water‡ (ml)		Bottled water‡ (ml)
Independent variable§	Β	se	Β	se	Β	se
Race/Hispanic origin
NH White	Ref.		Ref.		Ref.
NH Black	−118*	46	−330**	45	212**	40
NH Asian	−116	81	−82	64	−34	55
Hispanic	−63	66	−180*	64	243**	42
Nativity status
US-born	Ref.		Ref.		Ref.
Born outside fifty US states or Washington, DC	97	50	−92	60	188**	41
Education
Less than high school	Ref.		Ref.		Ref.
High-school graduate/GED or equivalent	6	57	31	63	−25	39
Some college or associates degree	139*	55	150**	52	−11	32
College graduate or above	260**	65	329**	58	−69	36
Age
20–39 years	Ref.		Ref.		Ref.
40–59 years	−110*	48	−121*	50	11	22
≥60 years	−421**	50	−279**	54	−142	28
Sex
Male	Ref.		Ref.		Ref.
Female	−22	38	−50	39	28	20
n	9666		9666		9666

NH, non-Hispanic; GED, General Educational Development; ref., reference category.

*P<0·05, **P<0·01

^†All estimates are weighted. Data are from NHANES^{( 23 )}.

^‡Data from a single 24 h dietary recall.

^§All covariates listed are adjusted for in the models.