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Table 2 Summary of Unadjusted Hemoglobin Analysis in Subjects with COPD (Stage 2, 3, 4 of GOLD Criteria)

From: Association between anemia and quality of life in a population sample of individuals with chronic obstructive pulmonary disease

Outcome Variables Unadjusted Group Means (Std. Error) P-Value
  Anemia No Anemia  
Physical Functioning Scores (n = 37) 39.98 (1.68) (n = 447) 45.36 (0.48) 0.002
PCS (n = 37) 41.95 (1.54) (n = 452) 45.86 (0.44) 0.02
MCS (n = 37) 49.83 (1.06) (n = 444) 49.07 (0.30) 0.49