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Table 4 Linear regression for the association among hemoglobin and St. George Respiratory Questionnaire (SGRQ) activity, impact and total scores

From: Anemia and hemoglobin serum levels are associated with exercise capacity and quality of life in chronic obstructive pulmonary disease

 

SGRQ activity

SGRQ impact

SGRQ total

      
 

β

SE

p-value

β

SE

p-value

β

SE

p-value

Age

0.302

0.250

0.231

0.073

0.234

0.755

0.095

0.215

0.661

Sex

10.565

5.415

0.054

−1.419

5.074

0.780

2.341

4.659

0.617

BMI

1.092

0.548

0.050

−0.087

0.514

0.866

0.422

0.472

0.374

Smoking habits (pack/years)

−10.278

4.439

0.023

−3.880

4.160

0.354

−4.266

3.820

0.267

CCI

−1.523

1.591

0.341

0.619

1.491

0.679

−0.218

1.369

0.874

CRP (mg/L)

0.054

0.204

0.791

0.208

0.191

0.279

0.188

0.175

0.287

FEV1%pred

−0.367

0.119

0.003

−0.328

0.112

0.004

−0.352

0.103

0.001

Hb (g/dL)

−5.274

1.868

0.006

−3.443

1.751

0.050

−3.783

1.608

0.021

  1. CCI: Charlson Comorbidity Index; CRP: C-reactive Protein.
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BMC Pulmonary Medicine

ISSN: 1471-2466

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