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Table 5 Multivariable analysis of factors associated with copd-related and total healthcare costs

From: Disproportionate utilization of healthcare resources among veterans with COPD: a retrospective analysis of factors associated with COPD healthcare cost

  COPD-related cost Total health care cost
Variables Adjusted regression p-value Adjusted regression p-value
coefficient coefficient
[95% confidence limits] [95% confidence limits]
Hospitalizations 0.988 [0.926, 1.050] <0.001 0.609 [0.543, 0.674] <0.001
Clinic visits 0.053 [0.040, 0.067] <0.001 0.027 [0.015, 0.039] <0.001
Treated by a pulmonologist 0.299 [0.133, 0.464] <0.001 0.208 [0.053, 0.363] 0.009
Number of medications 0.012 [0.003, 0.021] 0.011   NS
FEV1 −0.133 [−0.234, -0.031] 0.011   NS
Short acting anti-muscarinic 0.246 [0.100, 0.393] 0.001   NS
BMI −0.012 [−0.023, -0.001] 0.025   NS
Inhaled corticosteroid 0.168 [0.005, 0.331] 0.043   NS
DM   NS 0.291 [0.134, 0.449] <0.001
Depression   NS 0.195 [0.040, 0.351] 0.014
Age   NS −0.008 [−0.014, -0.002] 0.012
Nursing home resident   NS 0.506 [0.104, 0.909] 0.014
Maximum serum bicarbonate   NS 0.021 [0.003, 0.039] 0.026
  1. FEV1, Forced expiratory volume in 1 second; BMI, Body mass index; DM, Diabetes mellitus; NS, Not significant.