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Table 2 Estimated minutes spent on preventive health services and effect of covariates on visit length, by type of visit; adjusted analyses (estimate (SE))*

From: Estimated time spent on preventive services by primary care physicians

Predictor variable Preventive Visits Chronic Visits USPSTF Rating7 Recommended Time6
  Estimate Standard Error Estimate Standard Error   
Covariates       
Age (an increase of 10 yrs) 0.02 (0.02) 0.04 (0.01)   
Gender (female) -0.46 (0.70) 0.39 (0.25)   
Race       
   Black -1.19 (0.97) 0.60 (0.55)   
   All Other -1.00 (0.96) 0.33 (0.82)   
Payment       
   Medicare 0.95 (1.04) -0.33 (0.35)   
   Medicaid -0.08 (0.87) 0.92 (0.68)   
   Other Types -0.88 (1.14) -0.98 (0.61)   
New patient 2.59 (0.85) 6.67 (0.95)   
Preventive services       
Blood pressure 2.54 (0.91) 1.45 (0.62) A 0.25
Cholesterol 5.42 (1.15) 2.02 (0.64) A 1.00
Pap smear 1.86 (0.83) 4.70 (1.57) A 3.00
Colon scope 1.94 (1.88) 1.01 (1.11) A 17.00
Tobacco cessation counseling 0.11 (1.20) 1.20 (0.63) A 3.00
Mammography 2.54 (1.30) 2.87 (1.22) B 1.00
Nutrition counseling 1.34 (0.68) -0.17 (0.37) B 8.20
Prostate specific antigen 4.90 (1.27) 3.91 (0.97) I N/A
Exercise counseling 2.89 (0.92) 1.43 (0.48) I N/A
  1. * Beta coefficients for the preventive services can be interpreted as the mean amount of time spent providing that service.
  2. Nutrition is rated "B" only for those with documented related disorders (dyslipidemia or high BP).
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