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Table 1 Patient characteristics

From: The importance of having good quality indicators for care of patients with COPD: a look at hospital readmission rates

  Total group No hospitalization the year before the index hospitalization  ≥ 1 hospitalization the year before the index hospitalization
  Without re-admission (466) With re-admission (737) p-value Without re-admission (140) With re-admission (99) p-value Without re-admission (326) With readmission (638) p-value
Age (years) 70.7 ± 11.5 70.6 ± 10.6 0.80 70.0 ± 12.1 70.7 ± 11.7 0.64 71.0 ± 11.1 70.6 ± 10.6 0.48
Gender (% women) 38.8% 36.3% 0.38 38.5% 37.3% 0.85 38.9% 36.2% 0.40
Low SES (%) 57.1% 59.4% 0.42 56.4% 45.4% 0.09 57.5% 61.6% 0.20
Charleson score 4.0 ± 2.8 4.6 ± 3.0 0.0001 3.1 ± 2.4 3.2 ± 2.6 0.82 4.3 ± 2.9 4.9 ± 3.0 0.007
BMI (%) 28.3 ± 7.7 28.1 ± 6.8 0.75 28.7 ± 8.4 28.2 ± 6.3 0.61 28.1 ± 7.4 28.1 ± 6.9 0.93
Current smoker (%) 77.5% 77.5% 0.99 81.4% 79.8% 0.75 75.8% 77.1% 0.64
Asthma (%) 33.7% 38.3% 0.11 27.1% 32.3% 0.39 36.5% 39.1% 0.42
s/p MI (%) 21.2% 24.8% 0.15 15.0% 13.1% 0.68 23.9% 26.6% 0.36
CHF (%) 26.4% 36.2% 0.0004 22.1% 23.2% 0.84 28.2% 38.2% 0.002
DM (%) 39.3% 47.6% 0.004 32.8% 39.3% 0.30 42.0% 48.9% 0.04
HTN (%) 67.8% 70.7% 0.29 62.8% 53.5% 0.15 69.9% 73.3% 0.26
CRF (%) 21.9% 23.8% 0.55 16.43% 13.1% 0.58 24.2% 25.1% 0.77
Osteoporosis (%) 18.0% 20.2% 0.02 13.5% 17.1% 0.44 19.9% 24.9% 0.08