|
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.
