Pica associated with iron deficiency or depletion: clinical and laboratory correlates in 262 non-pregnant adult outpatients

Table 5 Significant predictors of pica in a logistic regression model¹

Variable	Beta coefficient	Standard error (SE)	Wald Coefficient/SE	Probability	Odds ratio (exponential beta)	95% Confidence interval of odds ratio
age, y	-0.190	0.009	-2.242	0.025	0.981	(0.965, 0.998)
MCV, fL	-0.024	0.008	-3.119	0.002	0.977	(0.962, 0.991)
RDW, %	0.105	0.032	3.328	0.001	1.111	(1.044, 1.182)
Platelets × 10⁹/L	0.002	0.001	2.288	0.022	1.002	(1.000, 1.004)

¹These results, obtained in a forward stepwise logistic regression model, include only the significant independent predictors of pica occurrence. Abbreviations: MCV, mean corpuscular volume; RDW, red blood cell distribution width. Significance of this regression: Chi-square (4 degrees of freedom) = 30.42; probability <0.0001.

ISSN: 2052-1839