Table 3 Interactive effect of RDW and depression in patients with or without cancer.

From: Correlation of red cell distribution width with depression among adults with and without self-reported history of cancer

Variable

Without cancer (n = 29338)

With cancer (n = 3129)

P for interaction

OR_95CI%

P value

OR_95CI%

P value

RDW (continuous)

1.05 (1.02–1.08)

0.001

0.97 (0.89–1.06)

0.508

0.012

Subgroups

     

T1 (< 12.6%)

1(Ref)

 

1(Ref)

 

0.026

T2 (12.7%−13.4%)

1.04 (0.93–1.16)

0.520

0.81 (0.57–1.16)

0.246

 

T3 (> 13.5%)

1.20 (1.07–1.34)

0.002

0.87 (0.62–1.22)

0.427

 

Trend test

 

0.002

 

0.522

 
  1. Adjusted for age, gender, race, education level, PIR, marital, BMI, smoking status, drinking status, WBC, RBC, Albumin, ALT, AST, BUN, creatinine, TC, diabetes, hypertension, Coronary heart disease and medication use.
  2. Abbreviations: OR, odds ratio; CI, confidence interval; PIR, the ratio of family income to poverty; BMI, body mass index; WBC, white blood cells; RBC, red blood cell count; RDW, red cell distribution width; ALT, alanine aminotransferase; AST, aspartate aminotransferase; BUN, blood urea nitrogen; TC, total cholesterol.
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