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Table 3 Analysis of risk factors for anemia in older adults

From: High anemia prevalence in Korean older adults, an advent healthcare problem: 2007–2016 KNHANES

Variable

Univariate analysis

Multivariate analysis

OR (95% CI)

P-Value

OR (95% CI)

P-Value

Mean age, years

1.077 (1.066–1.088)

< 0.001

1.058 (1.045–1.070)

< 0.001

Women, %

1.318 (1.167–1.488)

< 0.001

1.252 (1.080–1.453)

0.003

Underweight (BMI < 18 kg/m2), %

2.322 (1.717–3.139)

< 0.001

2.197 (1.570–3.075)

< 0.001

Social allowance, %

1.311 (1.107–1.552)

0.002

1.194 (0.984–1.449)

0.072

Low household income, %

1.077 (0.961–1.206)

0.201

  

Food insecurity

1.104 (0.742–1.644)

0.626

  

Live alone, %

1.247 (1.093–1.423)

0.001

1.042 (0.888–1.223)

0.616

Condition, %

 Hypertension

1.139 (1.010–1.284)

0.034

0.902 (0.790–1.029)

0.125

 Osteoarthritis

1.187 (1.041–1.353)

0.011

1.109 (0.954–1.290)

0.177

 Rheumatoid arthritis

1.628 (1.276–2.078)

< 0.001

1.436 (1.109–1.860)

0.006

 DM

1.525 (1.330–1.748)

< 0.001

1.438 (1.248–1.656)

< 0.001

 Asthma

0.896 (0.692–1.160)

0.406

  

 Pulmonary tuberculosis

0.659 (0.149–2.903)

0.581

  

 Cancer, current

2.360 (1.689–3.298)

< 0.001

2.675 (1.890–3.786)

< 0.001

 Hepatitis B

0.670 (0.384–1.169)

0.158

  

 Hepatitis C

0.787 (0.262–2.369)

0.670

  

 Liver cirrhosis

1.139 (0.585–2.216)

0.702

  

 CRF

3.107 (2.734–3.531)

< 0.001

2.557 (2.212–2.955)

< 0.001

  1. Abbreviations: OR odds ratio, CI confidence interval, BMI body mass index, DM diabetes mellitus, CVD cardiovascular disease, CRF chronic renal failure
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