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2004 National Healthcare Quality Report

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Table 2.14: Postoperative physiologic and metabolic derangements per 1000 elective surgical dischargesa, trends 1994-2001 and by patient and hospital characteristics, 2001, United States

  Adjusted rateb
Trends Estimate Standard error
     
    Total United States, 2001 1.035 0.037
    Total United States, 2000 1.127 0.036
    Total United States, 1997 1.046 0.045
    Total United States, 1994c 0.661 0.046
     
2001 adjusted rateb
Population group Estimate Standard error
     
Patient characteristic    
Age groups for conditions affecting any age    
    0-17 0.800 0.194
    18-44 0.527 0.088
    45-64 0.717 0.085
    65 and over 1.205 0.083
     
Age groups for conditions affecting primarily elderly    
    65-69 0.920 0.124
    70-74 1.084 0.122
    75-79 1.543 0.127
    80-84 1.398 0.154
    85 and over 1.136 0.198
     
Gender    
    Male 1.067 0.067
    Female 0.824 0.046
     
Median income of patient ZIP Code    
    Less than $25,000 0.786 0.167
    $25,000-$34,999 1.074 0.073
    $35,000-$44,999 1.031 0.064
    $45,000 or more 1.044 0.047
     
Location of patient residence    
    Metropolitan 1.074 0.040
    Micropolitan 0.908 0.095
    Noncore 0.781 0.119
     
Expected payment source    
    Private insurance 0.946 0.041
    Medicare 1.115 0.068
    Medicaid 1.417 0.126
    Other insurance 0.801 0.116
    Uninsured / self pay / no charge 0.995 0.174
     
Hospital characteristic    
Location of inpatient treatment    
    Northeast 0.954 0.072
    Midwest 0.956 0.068
    South 1.000 0.055
    West 1.301 0.072
     
Ownership/control    
    Private, not-for-profit 0.995 0.040
    Private, for-profit 1.063 0.087
    Public 1.329 0.105
     
Teaching status    
    Teaching 1.121 0.058
    Non-teaching 0.981 0.042
     
Location of hospital    
    Metropolitan 1.059 0.039
    Micropolitan 0.658 0.106
    Noncore 1.170 0.186
     
Bedsize    
    Less than 100 0.776 0.084
    100 - 299 0.820 0.051
    300 - 499 1.193 0.061
    500+ 1.240 0.075
     

aDenominator excludes patients with diabetic coma and patients with renal failure who also were diagnosed with AMI, cardiac arrhythmia, cardiac arrest, shock, hemorrhage, or gastrointestinal hemorrhage and obstetric admissions.

bRates are adjusted by age, gender, age-gender interactions, comorbidities, and DRG clusters. When reporting is by age, the adjustment is by gender, comorbidities, and DRG clusters; when reporting is by gender, the adjustment is by age, comorbidities, and DRG clusters.

cFor 1994, rate biased in unknown direction because the diagnosis code used to exclude discharges (998.11) in the numerator and denominator became effective after 1994 and before 1997.

Source: Agency for Healthcare Research and Quality, Center for Delivery, Organization, and Markets, Healthcare Cost and Utilization Project, Nationwide Inpatient Sample.

 

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