Association between serum zinc levels and basic physical functioning: secondary data analysis of NHANES 2011–14

BMC Nutrition

Table 4 Association between serum Zn status and basic physical functioning difficulty stratified by education, 2011–14 NHANES survey data

Multivariable-adjusted odds ratio with 95% confidence interval
	Stratified analyses
	Education
Zn level status	< High school (N = 352) Physical functioning difficulty Yes = 105; No = 247	High school (N = 253) Physical functioning difficulty Yes = 66; No = 187	> High school (N = 531) Physical functioning difficulty Yes = 112; No = 419
Low Zn tertile group	[Reference]	[Reference]	[Reference]
Middle Zn tertile group	0.48 (0.26–0.89)*	5.72 (1.92–17.00)*	1.77 (1.05–2.97)*
High Zn tertile group	0.51 (0.24–1.08)	2.42 (0.77–7.56)	0.65 (0.39–1.14)

Note: Model was adjusted for age, sex, weight (obesity vs. normal, overweight vs. normal, underweight vs. normal), race/ethnicity, health insurance, drinking status, smoking status, physical activity, diabetes, serum albumin (gm/dL), and blood hemoglobin (gm/dL)
Abbreviations: aOR = adjusted odds ratio; CI = confidence interval
* Indicates a significant association with p values < 0.05

ISSN: 2055-0928