Exhibit 3.1. Most Frequent All-listed Procedures Number, Percent Distribution, and Rank of Discharges for the Most Frequent All-listed Inpatient Hospital Procedures, 1997, 2004, and 2005
All-listed Procedure CCS Condition Category and Name Number of Stays with the Procedure in Thousands Standard Errors in Thousands Percent of Discharges with the Procedure Rank
1997 2004 2005 1997 2004 2005 1997 2004 2005 1997 2004 2005
All discharges 34,678.7 38,661.8 39,163.8 653.509 707.463 765.017            
All discharges with procedure 21,186.9 23,834.9 24,144.8 516.317 526.504 502.525 100.0 100.0 100.0      
222 Blood transfusion 1,097.5 2,227.9 2,359.4 65.252 88.740 85.207 5.2 9.3 9.8 5 1 1
47 Diagnostic cardiac catheterization, coronary arteriography (diagnostic procedure to explore the functioning of the heart) 1,461.3 1,611.3 1,589.1 70.620 73.616 72.215 6.9 6.8 6.6 1 2 2
140 Repair of obstetric laceration 1,137.4 1,341.7 1,334.3 46.213 50.956 56.175 5.4 5.6 5.5 3 3 3
134 Cesarean section (C-section) 800.1 1,270.9 1,303.6 31.169 48.282 49.699 3.8 5.3 5.4 9 4 4
115 Circumcision 1,163.6 1,211.5 1,237.5 48.536 49.206 50.436 5.5 5.1 5.1 2 7 5
70 Upper gastrointestinal endoscopy (procedure to view and biopsy the esophagus, stomach and first portion of intestine through a lighted tube) 1,105.3 1,267.3 1,224.0 24.959 35.309 30.547 5.2 5.3 5.1 4 5 6
216 Respiratory intubation and mechanical ventilation 919.1 1,240.4 1,222.6 25.299 35.538 28.354 4.3 5.2 5.1 7 6 7
228 Prophylactic vaccinations and inoculations 567.3 849.4 954.4 81.476 86.570 92.104 2.7 3.6 4.0 14 10 8
139 Fetal monitoring 1,002.3 1,046.6 911.4 102.539 93.210 76.905 4.7 4.4 3.8 6 8 9
136 Artificial rupture of membranes to assist delivery 747.3 865.6 885.5 55.743 47.631 49.599 3.5 3.6 3.7 10 9 10
Source: AHRQ, Center for Delivery, Organization, and Markets, Healthcare Cost and Utilization Project, Nationwide Inpatient Sample, 1997, 2004, and 2005.

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