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 Surgical Site Infections (SSI) in California Hospitals, 2011

To view the Key Findings and Public Health Actions for this data release, see  2011 Key Findings

What’s in Key Findings? This is a summary of the key findings from this data release including introduction, important results and suggested public health actions based on the results displayed in the 35 tables.


To view the tables for the 2011 surgical procedure categories with risk adjusted comparisons, see Tables 1 to 24

 TABLES 1 to 12 (3MB)  for abdominal aortic aneurysm repair, appendix surgery, bile duct, liver or pancreatic surgery, cardiac surgery, coronary artery bypass graft with both chest and donor site incisions, coronary artery bypass graft with chest incision only, gallbladder surgery, colon surgery, Cesarean section, spinal fusion, open reduction of fracture and gastric surgery.

 TABLES 13 to 24 (2MB) for hip prosthesis, abdominal hysterectomy, knee prosthesis, kidney transplant, laminectomy, liver transplant, rectal surgery, refusion of spine, small bowel surgery, thoracic surgery, vaginal hysterectomy, and abdominal surgery.

What’s in Tables 1 to 24? These tables display each hospital that submitted data on the procedure category with the numbers of procedures and infections, the risk adjusted SIR, and its 95 percent confidence interval with a comparison based on the confidence interval indicating an infection count that was lower, no different or higher than predicted. 


To view the 2011 tables for the 5 surgical procedure categories without risk adjusted comparisons (heart transplant, kidney surgery, ovarian surgery, pacemaker surgery and spleen surgery), see  Tables 25 to 29

What’s in Tables 25 to 29? The information displayed is limited to the reported procedure and infection counts as there is no risk adjustment for comparisons.

To view the 2011 hospitals that did not perform surgeries, the long term acute care (LTAC) and rehabilitation hospitals and those that reported late or not at all, see Tables 30 to 35

What’s in Tables 30 to 35? NHSN does not currently provide an appropriately risk adjusted SIR for LTACs and rehabilitation hospitals, which perform few surgeries. Their data are listed in Tables 30 to 32. Table 33 lists hospitals with no surgeries, 34 lists non reporters and 35 lists late reporters.

To view details of the processes behind the tables, see  2011 Technical Notes

What’s in Technical Notes? Information on the data sources, definitions, quality assurance and control, data presentation and statistical analysis and descriptions of the laws requiring reporting, the variables that go into risk adjusting and the limitations of these processes are described here.

Last modified on: 9/18/2013 3:59 PM