The Clinical Impact of Cirrhosis on the Hospital Outcomes of Patients Admitted With Influenza Infection: Propensity Score Matched Analysis of 2011-2017 US Hospital Data

The Impact of Race and Sex on the Clinical Outcomes of Homeless Patients With Alcoholic Liver Disease: Propensity Score Matched Analysis of US Hospitals

BACKGROUND

Among patients with alcoholic liver disease (ALD), homelessness poses significant medical and psychosocial risks; however, less is known about the effects of race and sex on the hospital outcomes of admitted homeless patients with ALD.

METHODS

The National Inpatient Sample database from 2012 to 2017 was used to isolate homeless patients with ALD, and the cohort was further stratified by race and sex for comparisons. Propensity score matching was utilized to minimize covariate confounding. The primary endpoints of this study include mortality, hospital length of stay, and hospital costs; secondary endpoints included the incidence of liver complications.

RESULTS

There were 3972 females/males postmatch, as well as 2224 Blacks/Whites and 4575 Hispanics/Whites postmatch. In multivariate, there were no significant differences observed in mortality rate, length of stay, and costs between sexes. Comparing liver outcomes, females had a higher incidence of hepatic encephalopathy [adjusted odds ratio (aOR) 1.02, 95% CI: 1.01-1.04, P <0.001]. In comparing Blacks versus Whites, Black patients had higher hospitalization costs (aOR 1.13, 95% CI: 1.03-1.24, P =0.01); however, there were no significant differences in mortality, length of stay, or liver complications. In comparing Hispanics versus Whites, Hispanic patients had longer length of hospital stay (aOR 1.12, 95% CI: 1.06-1.19, P <0.001), greater costs (aOR 1.15, 95% CI: 1.09-1.22, P <0.001), as well as higher prevalence of liver complications including varices (aOR 1.04, 95% CI: 1.02-1.06, P <0.001), hepatic encephalopathy (aOR 1.03, 95% CI: 1.02-1.04, P <0.001), and hepatorenal syndrome (aOR 1.01, 95% CI 1.00-1.01, P =0.03). However, there was no difference in mortality between White and Hispanic patients.

CONCLUSIONS

Black and Hispanic ALD patients experiencing homelessness were found to incur higher hospital charges; furthermore, Hispanic patients also had greater length of stay and higher incidence of liver-related complications compared with White counterparts.

Malnutrition as a risk factor of adverse postoperative outcomes in patients undergoing hepatic resection: analysis of US hospitals

Patients with liver cancer or space-occupying cysts suffer from malnutrition due to compression of gastric and digestive structures, liver and cancer-mediated dysmetabolism, and impaired nutrient absorption. As proportion of these patients requires removal of lesions through hepatic resection, it is important to evaluate the effects of malnutrition on post-hepatectomy outcomes. In our study approach, 2011-2017 National Inpatient Sample was used to isolate in-hospital hepatectomy cases, which were stratified using malnutrition (composite of malnutrition, sarcopenia and weight loss/cachexia). The malnutrition-absent controls were matched to cases using nearest neighbour propensity score matching method and compared with the following endpoints: mortality, length of stay, hospitalisation costs and postoperative complications. There were 2531 patients in total who underwent hepatectomy with matched number of controls from the database; following the match, malnutrition cohort (compared with controls) was more likely to experience in-hospital death (6·60 % v. 5·25 % P < 0·049, OR 1·27, 95 % CI 1·01, 1·61) and was more likely to have higher length of stay (18·10 d v. 9·32 d, P < 0·001) and hospitalisation costs ($278 780 v. $150 812, P < 0·001). In terms of postoperative complications, malnutrition cohort was more likely to experience bleeding (6·52 % v. 3·87 %, P < 0·001, OR 1·73, 95 % CI 1·34, 2·24), infection (6·64 % v. 2·49 %, P < 0·001, OR 2·79, 95 % CI 2·07, 3·74), wound complications (4·5 % v. 1·38 %, P < 0·001, OR 3·36, 95 % CI 2·29, 4·93) and respiratory failure (9·40 % v. 4·11 %, P < 0·001, OR 2·42, 95 % CI 1·91, 3·07). In multivariate analysis, malnutrition was associated with higher mortality (P < 0·028, adjusted OR 1·3, 95 % CI 1·03, 1·65). Thus, we conclude that malnutrition is a risk factor of postoperative mortality in patients undergoing hepatectomy.

Clinical implications of gender and race in patients admitted with autoimmune hepatitis: updated analysis of US hospitals

Background

Autoimmune hepatitis (AIH) can result in end-stage liver disease that requires inpatient treatment of the hepatic complications. Given this phenomenon, it is important to analyse the impact of gender and race on the outcomes of patients who are admitted with AIH using a national hospital registry.

Methods

The 2012-2017 National Inpatient Sample database was used to select patients with AIH, who were stratified using gender and race (Hispanics and blacks as cases and whites as reference). Propensity score matching was employed to match the controls with cases and compare mortality, length of stay and hepatic complications.

Results

After matching, there were 4609 females and 4609 males, as well as 3688 blacks and 3173 Hispanics with equal numbers of whites, respectively. In multivariate analysis, females were less likely to develop complications, with lower rates of cirrhosis, ascites, variceal bleeding, hepatorenal syndrome, encephalopathy and acute liver failure (ALF); they also exhibited lower length of stay (adjusted OR, aOR 0.96 95% CI 0.94 to 0.97). When comparing races, blacks (compared with whites) had higher rates of ALF and hepatorenal syndrome related to ALF, but had lower rates of cirrhosis-related encephalopathy; in multivariate analysis, blacks had longer length of stay (aOR 1.071, 95% CI 1.050 to 1.092). Hispanics also exhibited higher rates of hepatic complications, including ascites, varices, variceal bleeding, spontaneous bacterial peritonitis and encephalopathy.

Conclusion

Males and minorities are at a greater risk of developing hepatic complications and having increased hospital costs when admitted with AIH.

Clinical frailty is a risk factor of adverse outcomes in patients with esophageal cancer undergoing esophagectomy: analysis of 2011-2017 US hospitals

Frailty is an aggregate of medical and geriatric conditions that affect elderly and vulnerable patients; as frailty is known to affect postoperative outcomes, we evaluate the effects of frailty in patients undergoing esophageal resection surgery for esophageal cancer. 2011-2017 National Inpatient Sample was used to isolate younger (18 to <65) and older (65 or greater) patients undergoing esophagectomy for esophageal cancer, substratified using frailty (defined by Johns-Hopkins ACG frailty indicator) into frail patients and non-frail controls; the controls were 1:1 matched with frail patients using propensity score. Endpoints included mortality, length of stay (LOS), costs, discharge disposition, and postsurgical complications. Following the match, there were 363 and equal number controls in younger cohort; 383 and equal number controls in older cohort. For younger cohort, frail patients had higher mortality (odds ratio [OR] 3.14 95% confidence interval [CI] 1.39-7.09), LOS (20.5 vs. 13.6 days), costs ($320,074 vs. $190,235) and were likely to be discharged to skilled nursing facilities; however, there was no difference in postsurgical complications. In multivariate, frail patients had higher mortality (aOR 3.00 95%CI 1.29-6.99). In older cohort, frail patients had higher mortality (OR 1.96 95%CI 1.07-3.60), LOS (19.9 vs. 14.3 days), costs ($301,335 vs. $206,648) and were more likely to be discharged to short-term hospitals or skilled nursing facilities; the frail patients were more likely to suffer postsurgical respiratory failure (OR 2.03 95%CI 1.31-3.15). In multivariate, frail patients had higher mortality (aOR 1.93 95%CI 1.04-3.58). Clinical frailty adversely affects both younger and older patients undergoing esophagectomy for esophageal cancer.

The clinical implication of psychiatric illnesses in patients with alcoholic liver disease: an analysis of US hospitals

BACKGROUND

In this study, we evaluate the clinical impact of psychiatric illnesses (PI) on the hospital outcomes of patients admitted with alcoholic liver disease (ALD).

METHODS

From the National Inpatient Sample from 2012-2017, patients with alcoholic cirrhosis or alcoholic hepatitis were selected and stratified using the presence/absence of PI (which was a composite of psychiatric conditions). The cases were propensity score-matched to PI-absent controls and were compared to the following endpoints: mortality, death due to suicide, length of stay (LOS), hospitalization charges, and hepatic complications.

RESULTS

After matching, there were 122,907 PI with and 122,907 without PI. Those with PI were younger (51.8 vs. 51.9 years p = 0.02) and more likely to be female (39.2 vs. 38.7% p = 0.01); however, there was no difference in race. Patients with PI had lower rates of alcoholic cirrhosis but higher rates of alcoholic hepatitis/alcoholic hepatic steatosis. In multivariate, patients with PI had lower rates of all-cause mortality (aOR 0.51 95%CI 0.49-0.54); however, they experienced higher rates of deaths due to suicide (aOR 3.00 95%CI 1.56-5.78) and had longer LOS (aOR 1.02 95%CI 1.01-1.02).

CONCLUSION

Presence of PI in ALD patients is associated with prolonged hospital stay and higher rates deaths due to suicide.

The clinical impact of frailty on the postoperative outcomes of patients undergoing appendectomy: propensity score-matched analysis of 2011-2017 US hospitals

BACKGROUND

The presence of clinical frailty can pose an escalated risk toward surgical outcomes including in cases that involve minimally invasive procedures. Given this premise, we evaluate the effects of frailty on post-appendectomy outcomes using a national in-hospital registry.

METHODS

2011-2017 National Inpatient Sample was used to isolate inpatient appendectomy cases; the population as stratified using Johns Hopkins ACG clinical frailty, expressed as either binary or ternary (prefrailty, frailty, and without frailty) indicators. The controls were matched to frailty-present groups using propensity score matching and compared to various endpoints, including mortality, length of stay (LOS), hospitalization costs, and postoperative complications.

RESULTS

Post-match, there were 11,758 with and without frailty per binary; and 1236 frail, 10,522 pre-frail with respective equal number controls per ternary indicator. Using binary term, frail patients had higher mortality (4.22 vs 1.49% OR 2.92 95%CI 2.45-3.47), LOS (14.3 vs 5.35d p < 0.001), and costs ($160,700 vs $64,141 p < 0.001). In multivariate, frail patients had higher mortality (aOR 2.77 95%CI 2.32-3.31), as well as higher rates of postoperative complications. Using ternary term, frail patients had higher mortality (5.02 vs 2.27% OR 2.28 95%CI 1.45-3.59), LOS (18.9 vs 5.66 day p < 0.001) and costs ($200,517 vs $66,193 p < 0.001). In multivariate, frail patients had higher mortality (aOR 2.16 95%CI 1.35-3.43) and complications. Those with pre-frailty had higher mortality (4.12 vs 1.47% OR 2.88 95%CI 2.39-3.46), LOS (13.8 vs 5.34 day p < 0.001) and costs ($156,022 vs $63,772 p < 0.001). In multivariate, pre-frailty patients had higher mortality (aOR 2.79 95%CI 2.31-3.37) and complications.

CONCLUSIONS

Frailty and prefrailty (using the ternary indicator) are associated with increased postoperative mortality and complication in patients who undergo appendectomy; given this finding, it is imperative that these vulnerable patients are identified early in the preoperative phase and are provided risk-modifying measures to ameliorate risks and optimize outcomes.

American Association of Clinical Endocrinology Clinical Practice Guideline for the Diagnosis and Management of Nonalcoholic Fatty Liver Disease in Primary Care and Endocrinology Clinical Settings: Co-Sponsored by the American Association for the Study of Liver Diseases (AASLD)

OBJECTIVE

To provide evidence-based recommendations regarding the diagnosis and management of nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH) to endocrinologists, primary care clinicians, health care professionals, and other stakeholders.

METHODS

The American Association of Clinical Endocrinology conducted literature searches for relevant articles published from January 1, 2010, to November 15, 2021. A task force of medical experts developed evidence-based guideline recommendations based on a review of clinical evidence, expertise, and informal consensus, according to established American Association of Clinical Endocrinology protocol for guideline development.

RECOMMENDATION SUMMARY

This guideline includes 34 evidence-based clinical practice recommendations for the diagnosis and management of persons with NAFLD and/or NASH and contains 385 citations that inform the evidence base.

CONCLUSION

NAFLD is a major public health problem that will only worsen in the future, as it is closely linked to the epidemics of obesity and type 2 diabetes mellitus. Given this link, endocrinologists and primary care physicians are in an ideal position to identify persons at risk on to prevent the development of cirrhosis and comorbidities. While no U.S. Food and Drug Administration-approved medications to treat NAFLD are currently available, management can include lifestyle changes that promote an energy deficit leading to weight loss; consideration of weight loss medications, particularly glucagon-like peptide-1 receptor agonists; and bariatric surgery, for persons who have obesity, as well as some diabetes medications, such as pioglitazone and glucagon-like peptide-1 receptor agonists, for those with type 2 diabetes mellitus and NASH. Management should also promote cardiometabolic health and reduce the increased cardiovascular risk associated with this complex disease.

Effect of malnutrition on the postoperative outcomes of patients undergoing pancreatectomy for pancreatic cancer: Propensity score-matched analysis of 2011-2017 US hospitals

BACKGROUND

Patients with pancreatic cancer suffer from metabolic dysregulation, which can manifest in clinical malnutrition. Because a portion of these patients require cancer-resective surgery, we evaluate the impact of malnutrition in patients undergoing pancreatic resection using a national database.

METHODS

The 2011-2017 National Inpatient Sample was used to isolate cases of pancreatic resection (partial/total pancreatectomy and radical pancreaticoduodenectomy), which were stratified using malnutrition. A 1:1 nearest-neighbor propensity-score matching was applied to match the controls to the malnutrition cohort. End points include mortality, length of stay (LOS), hospitalization costs, and postoperative complications.

RESULTS

Following the match, there were 2108 with malnutrition and an equal number without; from this, those with malnutrition had higher mortality (4.7% vs 3.04%; P = 0.007; odds ratio [OR], 1.57; 95% CI, 1.14-2.17), longer LOS, and higher costs. Regarding complications, malnourished patients had higher bleeding (5.41% vs 2.99%; P < 0.001; OR, 1.86; 95% CI, 1.36-2.54), wound complications (3.75% vs 1.57%; P < 0.001; OR, 2.45; 95% CI, 1.62-3.69), infection (7.83% vs 3.13%; P < 0.001; OR, 2.63; 95% CI, 1.96-3.52), and respiratory failure (7.45% vs 3.56%; P < 0.001; OR, 2.18; 95% CI, 1.65-2.89). In multivariate analyses, those with malnutrition had higher mortality (P = 0.008; adjust OR, 1.55; 95% CI, 1.12-2.14).

CONCLUSION

Those with malnutrition had higher mortality and complications following pancreatic resection; given these findings, it is important that preoperative nutrition therapy is provided to minimize the surgical risks.

The Clinical Impact of Advanced Age on the Postoperative Outcomes of Patients Undergoing Gastrectomy for Gastric Cancer: Analysis Across US Hospitals Between 2011–2017

Purpose

This study systematically evaluated the implications of advanced age on post-surgical outcomes following gastrectomy for gastric cancer using a national database.

Materials and Methods

The 2011–2017 National Inpatient Sample was used to isolate patients who underwent gastrectomy for gastric cancer. From this, the population was stratified into those belonging to the younger age cohort (18–59 years), sexagenarians, septuagenarians, and octogenarians. The younger cohort and each advanced age category were compared in terms of the following endpoints: mortality following surgery, length of hospital stay, charges, and surgical complications.

Results

This study included a total of 5,213 patients: 1,366 sexagenarians, 1,490 septuagenarians, 743 octogenarians, and 1,614 under 60 years of age. Between the younger cohort and sexagenarians, there was no difference in mortality (2.27 vs. 1.67%; P=0.30; odds ratio [OR], 1.36; 95% confidence interval [CI], 0.81–2.30), length of stay (11.0 vs. 11.1 days; P=0.86), or charges ($123,557 vs. $124,425; P=0.79). Compared to the younger cohort, septuagenarians had higher rates of in-hospital mortality (4.30% vs. 1.67%; P<0.01; OR, 2.64; 95% CI, 1.67–4.16), length of stay (12.1 vs. 11.1 days; P<0.01), and charges ($139,200 vs. $124,425; P<0.01). In the multivariate analysis, septuagenarians had higher mortality (P=0.01; adjusted odds ratio [aOR], 2.01; 95% CI, 1.18–3.43). Similarly, compared to the younger cohort, octogenarians had a higher rate of mortality (7.67% vs. 1.67%; P<0.001; OR, 4.88; 95% CI, 3.06–7.79), length of stay (12.3 vs. 11.1 days; P<0.01), and charges ($131,330 vs. $124,425; P<0.01). In the multivariate analysis, octogenarians had higher mortality (P<0.001; aOR, 4.03; 95% CI, 2.28–7.11).

Conclusions

Advanced age (>70 years) is an independent risk factor for postoperative death in patients with gastric cancer undergoing gastrectomy.

The impact of compensated and decompensated cirrhosis on the postoperative outcomes of patients undergoing hernia repair: a propensity score-matched analysis of 2011-2017 US hospital database

BACKGROUND AND AIMS

Since there is clinical overlap between populations with cirrhosis and those who require hernia repair (i.e. due to stretching of abdominal walls), we systematically evaluate the effects of cirrhosis on post-hernia repair outcomes.

METHODS

2011-2017 National Inpatient Sample was used to identify patients who underwent hernia repair (included: inguinal, umbilical, and other abdominal hernia repairs). The population was stratified into those with compensated cirrhosis (CC), decompensated cirrhosis (DC), and no cirrhosis; hepatic decompensation was defined as those with portal hypertension, ascites, and varices. The propensity score was used to match the no-cirrhosis controls to CC and DC using the 1:1 nearest neighbor mechanism. Endpoints included mortality, length of stay, costs, and complications.

RESULTS

Postmatch, there were 392/446 CC/DC with equal number controls in those undergoing inguinal hernia repair, 714/1652 CC/DC with equal number controls in those undergoing umbilical hernia repair, and 784/702 CC/DC. In multivariate, for inguinal repair, there was no difference in mortality [CC vs. no-cirrhosis aOR 2.61, 95% confidence interval (CI) 0.50-13.52; DC vs. no-cirrhosis: aOR 1.75, 95% CI 0.84-3.63]. For umbilical repair, there was no difference in mortality for CC vs. no-cirrhosis: aOR 0.94, 95% CI 0.36-2.42); however, DC had higher mortality (aOR 2.86, 95% CI 1.76-4.63) when comparing DC vs. no-cirrhosis. For other abdominal repairs, there was no difference in mortality for CC vs. no-cirrhosis (aOR 1.10, 95% CI 0.54-2.23); however, DC had higher mortality (P < 0.001, aOR 2.58, 95% CI 1.49-4.46) when comparing DC vs. no-cirrhosis.

CONCLUSION

This study demonstrates that the presence of DC affects postoperative survival in patients undergoing umbilical or other abdominal hernia repair surgery.

The clinical impact of chronic liver disease in patients undergoing transcatheter and surgical aortic valve replacement: Systematic analysis of the 2011-2017 US hospital database

OBJECTIVES

In this study, we use a national database to evaluate post-transcatheter (TAVR)/surgical aortic valve replacement (SAVR) outcomes stratified using chronic liver disease (CLD).

BACKGROUND

In patients undergoing TAVR and SAVR, the surgical risks should be optimized; this includes evaluating hepatic diseases that may pose an operative risk.

METHODS

2011-2017 National Inpatient Sample was used to select in-hospital TAVR and SAVR cases, which were stratified according to CLD (cirrhosis, hepatitis B/C, alcoholic/fatty/nonspecific liver disease). The cases-controls were matched using propensity score matching and compared with various endpoints.

RESULT

After matching for demographics and comorbidities, for TAVR, 606 and 1818 were with or without CLD; for SAVR, 1353 and 4059 were with and without CLD. In TAVR, there was no differences in mortality (2.81% vs. 2.75% OR 1.02 95% CI 0.58-1.78) or length of stay (6.29 vs. 6.44d p = 0.29), and CLD-present patients had marginally increased costs ($228,415 vs. $226,682 p = 0.048). There were no differences in complications. In multivariate, there was no difference in mortality (aOR 1.02 95% CI 0.58-1.79). In SAVR, CLD patients had higher mortality (7.98% vs. 3.23% OR 2.60 95% CI 2.00-3.38), length of stay (13.3 vs. 11.3 days p < 0.001), and costs ($273,487 vs. $238,097 p < 0.001). CLD patients also had increased respiratory failure (9.02% vs. 7.19% OR 1.28 95% CI 1.03-1.59) and bleeding (8.43% vs. 6.33% OR 1.36 95% CI 1.08-1.71). In multivariate, CLD had higher mortality (aOR 2.60 95% CI 2.00-3.38).

CONCLUSION

CLD is associated with higher mortality and complications in patients undergoing SAVR; however, no correlation was found in patients undergoing TAVR.

The clinical impact of paroxysmal arrhythmias on the hospital outcomes of patients admitted with cirrhosis: propensity score matched analysis of 2011-2017 US hospitals

BACKGROUND

We evaluate the effects of paroxysmal arrhythmia on the hospital outcomes of patients admitted with cirrhosis.

RESEARCH DESIGN AND METHODS

2011-2017 National Inpatient Sample was used to isolate patients with decompensated/compensated cirrhosis, stratified by paroxysmal arrhythmia (supraventricular: PSVT and ventricular: PVT). The cohorts were matched using propensity-score matching and compared to mortality, length of stay, cost, and cardiac complications (cardioversion, cardiogenic shock, cardiac arrest, and ventricular fibrillation).

RESULTS

In compensated cirrhosis, 2,453 had PSVT with matched controls; 5,274 had PVT with matched controls. Those with PSVT had higher mortality (aOR 1.55 95%CI 1.23-1.95) and higher rates of cardioversion and cardiogenic shock; likewise, those with PVT had higher mortality (aOR 2.41 95%CI 2.09-2.78) and higher rates of all complications. In decompensated cirrhosis, 1,598 had PSVT with matched controls; 4,178 had PVT with matched controls. Those with PSVT had higher mortality (aOR 1.57 95%CI 1.28-1.93) and higher rates of cardioversion, cardiogenic shock, cardiac arrest; those with PVT had higher mortality (aOR 2.25 95%CI 1.98-2.56) and higher rates of all complications.

CONCLUSION

The findings from this study show that in either decompensated or compensated cohort, those with paroxysmal arrhythmias are at a higher risk of in-hospital mortality and adverse cardiac outcomes.

The impact of cirrhosis on the postoperative outcomes of patients undergoing splenectomy: Propensity score matched analysis of the 2011-2017 US hospital database

BACKGROUND & OBJECTIVE

While splenectomy is performed for various trauma and non-trauma indications, there is little information about the impact of cirrhosis on the post-splenectomy outcomes, despite the intricate physiological and vascular connection between the liver and the spleen.

METHODS

2011-2017 National Inpatient Sample was used to select patient cases who underwent the splenectomy procedure, who were further stratified using cirrhosis. The cirrhosis-absent controls were matched to the study cohort using propensity score matching with nearest neighbor matching method. Endpoints included mortality, length of stay, hospitalization costs, and postoperative complications.

RESULTS

There were 675 patients with cirrhosis and 675 matched controls identified from the database. Cirrhosis cohort had higher mortality (20.0 vs 7.26%, p < 0.001, OR = 3.19, 95% CI = 2.26-4.52) and hospitalization costs ($210,716 vs $186,673, p = 0.003), but shorter length of stay (11.8 vs 12.5d, p = 0.04). In terms of complications, cirrhosis cohorts had higher postoperative bleeding (7.26 vs 4.3%, p = 0.027, OR = 1.74, 95% CI = 1.09-2.80) and shock (3.7 vs 1.04%, p = 0.002, OR = 3.67, 95% CI = 1.58-8.54), and were more likely to be discharged to short-term hospitals and home with home health care. On multivariate analysis, presence of cirrhosis resulted in higher mortality (p < 0.001, aOR = 3.30, 95% CI = 2.33-4.69).

CONCLUSIONS

Cirrhosis is an independent risk factor of postoperative mortality in patients undergoing splenectomy; given this finding, further precautious and multidisciplinary care should be rendered in these at-risk patients with cirrhosis in the setting of splenectomy.

The clinical impact of malnutrition on the postoperative outcomes of patients undergoing colorectal resection surgery for colon or rectal cancer: Propensity score matched analysis of 2011-2017 US hospitals

BACKGROUND & AIMS

Malnutrition can be prevalently found in patients with significant-to-advanced colorectal cancer, who potential require colorectal resection procedures; to accurately describe the postoperative risks, we used a propensity-score matched comparison of national database to analyze the effects of malnutrition on post-colectomy outcomes.

METHODS

2011-2017 National inpatient Sample was used to isolate inpatient ceases of colorectal resection procedures, which were stratified using malnutrition into malnutrition-present cohort and malnutrition-absent controls; the controls were propensity-score matched with the study cohort using 1:1 ratio and compared to the following endpoints: mortality, length of stay, costs, postoperative complications.

RESULTS

After matching, there were 11357 with and without malnutrition who underwent colorectal resection surgery; in comparison, malnourished patients had higher rates of in-hospital mortality (6.14 vs 3.22% p < 0.001, OR 1.96 95%CI 1.73-2.23), length of stay (15.4 vs 9.61d p < 0.001), costs ($163, 962 vs $102,709 p < 0.001), and were more likely to be discharged to non-routine discharges, including short term hospitals, skilled nursing facilities, and home healthcare. In terms of complications, malnourished patients had higher bleeding (2.87 vs 1.68% p < 0.001, OR 1.73 95%CI 1.44-2.07), wound complications (4.31 vs 1.34% p < 0.001, OR 3.32 95%CI 2.76-3.99), infection (6 vs 2.62% p < 0.001, OR 2.38 95%CI 2.07-2.73), and postoperative respiratory failure (7.27 vs 3.37% p < 0.001, OR 2.25 95%CI 1.99-2.54).

CONCLUSION

This study demonstrates the presence of malnutrition to be associated with adverse postoperative outcomes including mortality and complications in patients undergoing colorectal resection surgery for colon cancer.