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Table 2 Change in BNP orders associated with one unit change in selected variables from ZTNB regression

From: “Reducing unnecessary testing in a CPOE system through implementation of a targeted CDS intervention”

  (1) (2) (3)
40 < Age ≤ 60 0.125** 0.115** 0.114**
(0.055) (0.055) (0.056)
60 < Age ≤ 80 0.237*** 0.235*** 0.247***
(0.052) (0.052) (0.053)
Age > 80 0.315*** 0.310*** 0.326***
(0.055) (0.055) (0.057)
Female −0.005 −0.006 −0.006
(0.011) (0.011) (0.012)
Black −0.010 −0.012 −0.008
(0.040) (0.040) (0.041)
Hispanic −0.104*** −0.085** −0.010***
(0.035) (0.037) (0.036)
Other race 0.192*** 0.190*** 0.196***
(0.034) (0.034) (0.034)
Elective admission −0.094*** −0.085*** −0.089***
(0.028) (0.028) (0.028)
Urgent admission −0.005 0.003 0.007
(0.019) (0.019) (0.020)
1st risk score quartile −0.481*** −0.499*** −0.506***
(0.013) (0.014) (0.013)
2nd risk score quartile −0.322*** −0.337*** −0.338***
(0.013) (0.013)*** (0.013)
3rd risk score quartile −0.157*** −0.170*** −0.167***
(0.013) (0.013) (0.014)
Private insurance −0.031 −0.031 −0.024
(0.021) (0.021) (0.021)
Medicaid 0.088* 0.074 0.088*
(0.050) (0.048) (0.050)
Self-pay 0.051 0.051 0.034
(0.084) (0.086) (0.085)
Private managed care 0.002 0.002 0.013
(0.041) (0.041) (0.043)
Medicare managed care −0.030** −0.028* −0.030**
(0.015) (0.015) (0.015)
Medicaid managed care −0.001 −0.008 −0.002
(0.069) (0.061) (0.062)
Post intervention period −0.598*** −0.460*** −0.378***
(0.028) (0.030) (0.056)
Time trend variables    
Monthly trend X X  
Monthly trend squared   X  
Month indicators    X
  1. Notes: Standard errors in parenthesis; *** p<0.01, **p<0.05, *p<0.1. Base categories include: age ≤ 40; white; emergency admission; 4th (highest) risk score quartile; and Medicare.
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BMC Medical Informatics and Decision Making

ISSN: 1472-6947

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