Article Figures & Data
Tables
Variable Same-Day Mastectomy Group, n=4,357 1-Day Length of Stay Group, n=18,285 P Value Age, years, mean 54.0 57.9 <0.01 Sex <0.01 Male 880 (20.2) 357 (2.0) Female 3,477 (79.8) 17,928 (98.0) Race <0.01 White 2,391 (54.9) 13,621 (74.5) Black or African American 313 (7.2) 1,674 (9.2) Asian 335 (7.7) 921 (5.0) Unknown/Not reported 1,263 (29.0) 1,941 (10.6) Native Hawaiian or Pacific Islander 45 (1.0) 66 (0.4) American Indian or Alaska Native 10 (0.2) 62 (0.3) Comorbidities Diabetes mellitus 471 (10.8) 2,172 (11.9) 0.04 Current smoker within 1 year 550 (12.6) 2,015 (11.0) <0.01 Dyspnea with moderate exercise or at rest 150 (3.4) 769 (4.2) 0.02 Chronic obstructive pulmonary disease 95 (2.2) 464 (2.5) 0.17 Congestive heart failure within 30 days 11 (0.3) 35 (0.2) 0.42 Hypertension requiring medication 1,469 (33.7) 6,924 (37.9) <0.01 Currently on dialysis 11 (0.3) 28 (0.2) 0.16 Disseminated cancer 60 (1.4) 269 (1.5) 0.64 Steroid use for chronic condition 76 (1.7) 417 (2.3) 0.03 >10% weight loss in <6 months 15 (0.3) 67 (0.4) 0.83 Bleeding disorders 43 (1.0) 219 (1.2) 0.24 Functional statusa 0.02 Independent 4,306 (99.4) 18,043 (99.1) Partially or totally dependent 24 (0.6) 165 (0.9) American Society of Anesthesiologists classificationb <0.01 1 643 (14.8) 868 (4.8) 2 2,369 (54.4) 10,426 (57.1) 3 1,279 (29.4) 6,737 (36.9) 4 59 (1.4) 227 (1.2) Variable Same-Day Mastectomy Group, n=4,357 1-Day Length of Stay Group, n=18,285 P Value Mastectomy <0.01 Simple 3,546 (81.4) 17,737 (97.0) Subcutaneous 811 (18.6) 548 (3.0) Laterality <0.01 Unilateral 3,640 (83.5) 13,680 (74.8) Bilateral 717 (16.5) 4,605 (25.2) Breast reconstruction <0.01 Immediate 214 (4.9) 1,493 (8.2) Delayed 268 (6.2) 5,990 (32.8) Note: Data are reported as n (%).
Complication Same-Day Mastectomy Group, n=4,357 1-Day Length of Stay Group, n=18,285 P Value Any wound complication within 30 days 113 (2.6) 637 (3.5) <0.01 Superficial incisional surgical site infection 62 (1.4) 348 (1.9) 0.03 Organ space surgical site infection 22 (0.5) 160 (0.9) 0.01 Deep incisional surgical site infection 17 (0.4) 83 (0.5) 0.57 Wound disruption 13 (0.3) 69 (0.4) 0.44 Any medical complication within 30 days 28 (0.6) 202 (1.1) <0.01 Urinary tract infection 10 (0.2) 38 (0.2) 0.78 Sepsis 7 (0.2) 65 (0.4) 0.04 Myocardial infarction 3 (0.1) 8 (0.0) 0.50 Bleeding transfusions 5 (0.1) 17 (0.1) 0.68 Deep vein thrombosis/thrombophlebitis 3 (0.1) 23 (0.1) 0.32 Septic shock 3 (0.1) 6 (0.0) 0.24 Pneumonia 2 (0.0) 16 (0.1) 0.38 Pulmonary embolism 1 (0.0) 20 (0.1) 0.09 Cerebrovascular accident/stroke with neurologic deficit 0 (0.0) 11 (0.1) 0.11 Reintubation 1 (0.0) 7 (0.0) 0.53 Failure to wean off ventilator >48 h 2 (0.0) 4 (0.0) 0.33 Renal insufficiency 2 (0.0) 2 (0.0) 0.17 Renal failure 0 (0.0) 3 (0.0) 0.53 Cardiac arrest requiring cardiopulmonary resuscitation 1 (0.0) 2 (0.0) 0.47 30-day return to the operating room 110 (2.5) 664 (3.6) <0.01 30-day readmission 81 (1.9) 555 (3.0) <0.01 Note: Data are reported as n (%).
- Table 4.
Multivariate Analysis Demonstrating the Odds for Postoperative Complications in the 1-Day Length of Stay Group
95% CI Variable Exp(B) Low High P Value Any wound complication within 30 days 1.21 0.98 1.50 0.07 Superficial incisional surgical site infection 1.24 0.93 1.65 0.14 Organ space surgical site infection 1.53 0.96 2.42 0.07 Any medical complication within 30 days 1.60 1.06 2.42 0.02 30-day return to the operating room 1.46 1.17 1.81 <0.01 30-day readmission 1.60 1.25 2.05 <0.01 Exp(B), exponentiation of the B coefficient.
95% CI Variable Exp(B) Low High P Value Risk factors for wound complications within 30 days Smoking 1.88 1.56 2.28 <0.01 Diabetes mellitus 1.51 1.22 1.85 <0.01 Dyspnea with moderate exercise or at rest 1.36 1.00 1.86 0.05 Hypertension requiring medication 1.35 1.14 1.60 <0.01 Risk factors for medical complications within 30 days Dyspnea with moderate exercise or at rest 2.21 1.41 3.47 <0.01 Hypertension requiring medication 1.42 1.05 1.92 0.02 Risk factor for 30-day return to the operating room Smoking 1.33 1.08 1.63 0.01 Risk factors for 30-day readmission Partially or totally dependent functional status 2.62 1.57 4.37 <0.01 Dyspnea with moderate exercise or at rest 1.98 1.47 2.67 <0.01 Smoking 1.36 1.08 1.70 <0.01 Hypertension requiring medication 1.28 1.07 1.54 <0.01 Exp(B), exponentiation of the B coefficient.
- Table 6.
Multivariate Analysis Identifying Patient and Operative Characteristics Associated With 1-Day Length of Stay
95% CI Variable Exp(B) Low High P Value Patient characteristics Partially or totally dependent functional status 1.79 1.14 2.79 0.01 Hypertension requiring medication 1.32 1.22 1.44 <0.01 Steroid use within 30 days 1.31 1.01 1.69 0.04 Dyspnea with moderate exercise or at rest 1.27 1.05 1.53 0.01 Diabetes mellitus 1.18 1.04 1.32 <0.01 Operative characteristics Delayed breast reconstruction 6.86 6.00 7.85 <0.01 Immediate breast reconstruction 1.88 1.61 2.20 <0.01 Bilateral mastectomy 1.21 1.09 1.33 <0.01 Exp(B), exponentiation of the B coefficient.
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