Statistical Methods - Text Mining Techniques for Healthcare Provider Quality Determination - page 87

Table 7. Most frequent procedures for patients with COPD

pr Procedure Translation Frequency Percent

3893 Venous catheterization, not elsewhere classified 40021 7.54

9904 Transfusion of packed cells 38359 7.22

9604 Insertion of endotracheal tube 27304 5.14

9671 Continuous mechanical ventilation for less than 96 consecutive hours 17065 3.21

9672 Continuous mechanical ventilation for 96 consecutive hours or more 16300 3.07

3995 Hemodialysis 14729 2.77

3324 Closed [endoscopic] biopsy of bronchus 13952 2.63

3491 Thoracentesis 13152 2.48

8872 Diagnostic ultrasound of heart 10356 1.95

9921 Injection of antibiotic 9238 1.74

9394 Respiratory medication administered by nebulizer 8674 1.63

9390 Continuous positive airway pressure 7868 1.48

8856 Coronary arteriography using two catheters 7622 1.44

4516 Esophagogastroduodenoscopy [EGD] with closed biopsy 7516 1.42

966 Enteral infusion of concentrated nutritional substances 7203 1.36

3722 Left heart cardiac catheterization 6652 1.25

8853 Angiocardiography of left heart structures 6350 1.20

4513 Other endoscopy of small intestine 6343 1.19

3404 Insertion of intercostal catheter for drainage 5693 1.07

8741 Computerized axial tomography of thorax 5538 1.04

9915 Parenteral infusion of concentrated nutritional substances 5169 0.97

9907 Transfusion of other serum 4962 0.93

9396 Other oxygen enrichment 4937 0.93

4311 Percutaneous [endoscopic] gastrostomy 4831 0.91

3895 Venous catheterization for renal dialysis 4726 0.89

0331 Spinal tap 4362 0.82

3891 Arterial catheterization 3867 0.73

3327 Closed endoscopic biopsy of lung 3776 0.71

9339 Other physical therapy 3492 0.66

311 Temporary tracheostomy 3406 0.64

4523 Colonoscopy 3404 0.64

the correlation of some of the procedures listed in Table 8.
Unfortunately, many studies simply ignore both the issue of non-uniform data entry and the issue of
multicollinearity in the explanatory variables. However, there are techniques available that can utilize
all of the procedure and/or diagnosis codes without making either assumption; they will be discussed
in Chapter 4. (Cerrito, 2007) In this chapter, we will restrict our attention to regression. To find the
relationship of these codes, we combine them using the following SAS code: