Table 2

Logistic regression results of the associations between social-demographic factors and anaemia among older adults

Socialdemographic factorsAnaemia
OR (95% CI)P value
Age, years
 60–64Ref.Ref.
 65–691.21 (1.03 to 1.42)0.024
 70–741.62 (1.36 to 1.93)<0.001
 75–792.06 (1.67 to 2.53)<0.001
 80+2.29 (1.79 to 2.94)<0.001
Female versus male1.32 (1.16 to 1.52)<0.001
Urban versus rural0.86 (0.73 to 1.01)0.058
Education
 IlliterateRef.Ref.
 Can read0.94 (0.80 to 1.10)0.429
 Elementary school0.91 (0.75 to 1.09)0.297
 Middle school0.74 (0.58 to 0.94)0.013
 High school or above0.53 (0.37 to 0.77)0.001
 Married versus other0.93 (0.79 to 1.08)0.333
Body mass index, kg/m2
 <18.5Ref.Ref.
 18.5–23.90.66 (0.54 to 0.81)<0.001
 24.0–27.90.37 (0.29 to 0.46)<0.001
 ≥280.22 (0.17 to 0.31)<0.001
  • P values were obtained by the logistic regression analysis for all variables.