Table 1.

List of the 21 variables required by the ACS NSQIP Surgical Risk Calculator interface to generate a risk score for PJI

Age

Sex

Functional status

Emergent case

ASA score

Wound class

Steroid use for chronic condition

Ascites within 30 days before surgery

Systemic sepsis within 48 hours before surgery

Ventilator-dependent

Disseminated cancer

Diabetes

Hypertension requiring medication

Previous cardiac event

CHF in 30 days before surgery

Dyspnea

Current smoker within 1 year

History of severe COPD

Dialysis

Acute renal failure

BMI

ACS NSQIP = American College of Surgeons National Surgical Quality Improvement Program; PJI = periprosthetic joint infection; ASA = American Society of Anesthesiologists; CHF = congestive heart failure; COPD = chronic obstructive pulmonary disease; BMI = body mass index.