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Medical literature does not have clear consensus on inter-rater reliability of PS assessment by different oncology health care professionals (HCPs) although it plays an important role in treatment decision and prognosis for oncology patients. Eastern Cooperative Oncology Group (ECOG) and Karnofsky performance status (KPS) scores are commonly used for this purpose by oncology HCPs around the world. This study was conducted to find variability or similarities in assessment of PS among the different oncology HCPs. A survey based on four hypothetical clinical scenarios was devised and sent to 50 oncology HCPs to assess the PS using ECOG PS tool. No significant variations in PS assessment by oncology HCPs was noted in our study sample.

Background For over 60 years, the Karnofsky Performance Status (KPS) has proven itself a valuable tool with which to perform measurement of and comparison between the functional statuses of individual patients. In recent decades conditions for patients have changed, and so too has the KPS undergone several adjustments since its initial development. Discussion The most important works regarding the KPS tend to focus upon a variety of issues, including but not limited to reliability, validity and health-related quality of life. Also discussed is the question of what quantity the KPS may in fact be said to measure. The KPS is increasingly used as a prognostic factor in patient assessment. Thus, questions regarding if and how it affects survival are relevant. In this paper, we propose an algorithm which uses a minimum of two and a maximum of three questions to facilitate an adequate and efficient evaluation of the KPS. Summary This review honors the original intention of the discoverer and gives an overview of adaptations made in recent years. The proposed algorithm suggests specific updates with the goal of ensuring continued adequacy and expediency in the determination of the KPS.

Introduction Survival prediction for patients with incurable malignancies is invaluable information during end-of-life discussions, as it helps the healthcare team to appropriately recommend treatment options and consider hospice enrolment. Assessment of performance status may differ between different healthcare professionals (HCPs), which could have implications in predicting prognosis. The aim of this systematic review and meta-analysis is to update a prior systematic review with recent articles, as well as conduct a meta-analysis to quantitatively compare performance status scores. Methods A literature search was carried out in Ovid MEDLINE, Embase, and Cochrane Central Register of Controlled Trials, from the earliest date until the first week of August 2019. Studies were included if they reported on (1) Karnofsky Performance Status (KPS), Eastern Cooperative Oncology Group (ECOG) Performance Status, and/or Palliative Performance Scale (PPS) and (2) assessment of performance status by multiple HCPs for the same patient sets. The concordance statistics (Kappa, Krippendorff’s alpha, Kendall correlation, Spearman rank correlation, Pearson correlation) were extracted into a summary table for narrative review, and Pearson correlation coefficients were calculated for each study and meta-analyzed with a random effects analysis model. Analyses were conducted using Comprehensive Meta-Analysis (Version 3) by Biostat. Results Fourteen articles were included, with a cumulative sample size of 2808 patients. The Pearson correlation coefficient was 0.787 (95% CI: 0.661, 0.870) for KPS, 0.749 (95% CI: 0.716, 0.779) for PPS, and 0.705 (95% CI: 0.536, 0.819) for ECOG. Four studies compared different tools head-to-head; KPS was favored in three studies. The quality of evidence was moderate, as determined by the GRADE tool. Conclusions The meta-analysis’s Pearson correlation coefficient ranged from 0.705 to 0.787; there is notable correlation of performance status scores, with no one tool statistically superior to others. KPS is, however, descriptively better and favored in head-to-head trials. Future studies could now examine the accuracy of KPS assessment in prognostication and focus on model-building around KPS.

Abstract Introduction Among older adults with cancer receiving chemotherapy, frailty indices predict OS and toxicity. Given the increased use of immunotherapy and targeted therapy for advanced non-small cell lung cancer (aNSCLC), we evaluated frailty and Karnofsky Performance Status (KPS) among older adults with aNSCLC receiving chemotherapy, immunotherapy, and/or targeted therapy. Methods Patients aged ≥ 65 with aNSCLC starting systemic therapy with non-curative intent underwent geriatric assessments over 6 months. We developed a deficit-accumulation frailty index to categorize patients as robust, pre-frail, or frail. To evaluate associations between frailty and KPS with OS, we used Cox proportional hazards models adjusted for race, insurance, and treatment. We used logistic regression to evaluate hospitalizations, functional decline, and severe toxicity. Results Among 155 patients (median age 73), 45.8% were robust, 36.1% pre-frail, and 18.2% frail; 34.8% had a KPS ≥ 90, 32.9% had a KPS of 80, and 32.3% had a KPS ≤ 70. The median OS was 17.9 months. Pre-frail/frail patients had worse OS compared to robust patients (adjusted hazard ratio [HR] 2.09, 95% CI, 1.31-3.34) and were more likely to be hospitalized (adjusted odds ratio [OR] 2.21, 95% CI, 1.09-4.48), functionally decline (adjusted OR 2.29, 95% CI, 1.09-4.78), and experience grade ≥ 3 hematologic toxicity (adjusted OR 5.18, 95% CI, 1.02-26.03). KPS was only associated with OS. Conclusions Our frailty index was associated with OS, hospitalization, functional decline, and hematologic AEs among older adults with aNSCLC receiving systemic therapies, while KPS was only associated with OS. Pretreatment frailty assessment may help identify older adults at risk for poor outcomes to optimize decision-making and supportive care.

The diagnosis of glioblastoma (GBM) often carries a dismal prognosis, with a median survival of 14.6 months. A particular challenge is the diagnosis of GBM in the elderly population (age > 75 years), who have significant comorbidities, present with worse functional status, and are at higher risk with surgical treatments. We sought to evaluate the impact of current GBM treatment, specifically in the elderly population. The authors undertook a retrospective review of all patients aged 75 or older who underwent treatment for GBM from 1997 to 2016. Patient outcomes were evaluated with regards to demographics, surgical variables, postoperative treatment, and complications. A total of 82 patients (mean age 80.5 ± 3.8 years) were seen. Most patients presented with confusion (57.3%) and associated comorbidities, and prior anticoagulation use was common in this age group. Extent of resection (EOR) included no surgery (9.8%), biopsy (22.0%), subtotal resection (40.2%), and gross-total resection (23.2%). Postoperative adjuvant therapy included temozolomide (36.1%), radiation (52.5%), and bevacizumab (11.9%). A mean overall survival of 6.3 ± 1.2 months was observed. There were 34 complications in 23 patients. Improved survival was seen with increased EOR only for patients without postoperative complications. A multivariate Cox proportional hazards model showed that complications (HR = 5.43, 95% CI 1.73, 17.04, p = 0.004) predicted poor outcome. Long-term survivors (> 12 months survival) and short-term survivors had similar median preoperative Karnofsky Performance Scale (KPS) score (80 vs. 80, p = 0.43), but long-term survivors had unchanged postoperative KPS (80 vs. 60, p = 0.02) and no complications (0/9 vs. 23/72, p = 0.04). The benefit of glioblastoma treatment in our series was limited by the postoperative complications and KPS. Presence of a complication served as an independent risk factor for worsened overall survival in this age group. It is likely that decreased patient function limits postoperative adjuvant therapy and predisposes to higher morbidity especially in this age group.

Immune checkpoint inhibitors (CKIs) are therapeutic weapons in several advanced malignancies. Performance status is a validated prognostic variable in cancer patients; it possibly affects the efficiency of the immune system. We performed a systematic review and meta-analysis to investigate the predictive role of PS toward treatment with CKIs in cancer patients. Following PRISMA guidelines, an electronic search from PubMed, The Cochrane Library and Embase was performed, from the inception of each database to May 31, 2018. Inclusion criteria were (1) randomized trials comparing CKI with standard therapy for the treatment of patients with solid tumors; (2) information on overall survival (OS) according to PS; (3) full text available; and (4) reported in English language. Data were pooled using HRs for OS according to random effect model. The effect of experimental versus control arms was evaluated in PS = 0 and 1–2 subgroups, and the heterogeneity between the two estimates was assessed using an interaction test. The OS differences between PS = 0 and PS = 1–2 strata were evaluated in all studies and according to predefined subgroups. Eighteen studies were eligible, with 11,354 patients [PS = 0 group 5217 patients (46%); PS = 1–2 group 6137 patients (54%)]. The pooled HR for OS was 0.78 (95% CI 0.69–0.89) in PS = 0 patients. In PS = 1–2 patients, the pooled OS HR was 0.78 (95% CI 0.71–0.86). The OS difference between PS = 0 and PS = 1–2 patients treated with CKI was not significant (P = 0.99). CKI improves survival irrespective of patients’ PS. PS should not guide treatment choice for anticancer immunotherapy.

Eastern Cooperative Oncology Group (ECOG) performance status and Gleason score are commonly investigated factors for overall survival (OS) in men with castration-resistant prostate cancer (CRPC). However, there is a lack of consistency regarding their prognostic or predictive value for OS. Therefore, we performed this meta-analysis to assess the associations of ECOG performance status and Gleason score with OS in CRPC patients and compare the two markers in patients under different treatment regimens or with different chemotherapy histories. A systematic literature review of monotherapy studies in CRPC patients was conducted in the PubMed database until May 2019. The data from 8247 patients in 34 studies, including clinical trials and real-world data, were included in our meta-analysis. Of these, twenty studies reported multivariate results and were included in our main analysis. CRPC patients with higher ECOG performance statuses (≥ 2) had a significantly increased mortality risk than those with lower ECOG performance statuses (<2), hazard ratio (HR): 2.10, 95% confidence interval (CI): 1.68-2.62, and P < 0.001. The synthesized HR of OS stratified by Gleason score was 1.01, with a 95% CI of 0.62-1.67 (Gleason score ≥ 8 vs <8). Subgroup analysis showed that there was no significant difference in pooled HRs for patients administered taxane chemotherapy (docetaxel and cabazitaxel) and androgen-targeting therapy (abiraterone acetate and enzalutamide) or for patients with different chemotherapy histories. ECOG performance status was identified as a significant prognostic factor in CRPC patients, while Gleason score showed a weak prognostic value for OS based on the available data in our meta-analysis.

Pulmory rehabilitation (PR) in chronic respiratory diseases improves symptoms, quality of life, and exercise capacity and has an integral role in lung transplantation (LT). Virtual PR has recently emerged to cater to patients who otherwise may not have regular access to PR. However, little is known about the effect of virtual PR strategies on candidates for LT. The primary objective was to study the effect of a protocolized hybrid PR program on performance status using the Karnofsky Performance Status (KPS) score. Secondary objectives were Eastern Cooperative Oncology Group (ECOG) status, quality of life, symptom severity, sarcopenia, spirometry (pulmory function test and diffusing capacity of the lung for carbon monoxide), 6-minute walk distance, and eligibility for LT waitlisting. This is a prospective, single-arm, interventiol study on patients with end-stage lung disease, meeting referral criteria for LT. A protocolized 12-week hybrid hospital and home-based virtual PR intervention was conducted, and all outcomes were assessed at baseline and at completion of the intervention. A total of 75 patients were enrolled, and the intervention was completed by 51 patients (68%). A total of 35 patients met LT listing criteria, 27 being “unfit” for LT at baseline, 18 of whom completed the intervention. Significant improvement was seen in KPS, ECOG, St. George’s Respiratory Questionire score, visual alog scale score for cough and dyspnea, and sarcopenia for all 51 patients. Of the 18 patients unfit for waitlisting, 12 became fit, and 7 were waitlisted for LT. Patients eligible for LT who do not have access to regular PR may benefit from a hybrid (virtual and hospital-based) PR program, with improvement in KPS, quality of life, sarcopenia, and eligibility for LT waitlisting.

Background For brain metastases from non-specific primary tumors, the most frequently used and validated clinical prognostic assessment tool is Karnofsky performance status (KPS). Given the lack of prognostic factors of brain metastases from colorectal cancer (CRC) other than KPS, this study aimed to identify new prognostic factors. Methods This retrospective cohort study was conducted at a tertiary care cancer center. Subjects were patients with brain metastases from CRC among all patients who received initial treatment for CRC at the National Cancer Center Hospital from 1997 to 2015 ( n  = 7147). Prognostic clinicopathological variables for overall survival (OS) were investigated. Results There were 68 consecutive patients with brain metastases from CRC, corresponding to 1.0% of all patients with CRC during the study period. Median survival time was 6.8 months. One-year and 3-year OS rates were 28.0 and 10.1%, respectively. Among the six covariates tested (age, KPS, presence of extracranial metastases, control of primary lesion, number of brain metastases, and history of chemotherapy), multivariate analysis revealed KPS (score ≥ 70), number of brain metastases (1–3), and no history of chemotherapy to be independent factors associated with better prognosis. Conclusions In addition to KPS, the number of brain lesions and history of chemotherapy were independent prognostic factors for OS in patients with brain metastases from CRC. An awareness of these factors may help gastrointestinal surgeons make appropriate choices in the treatment of these patients.

Background Functional performance as measured by the Karnofsky Performance Status (KPS) scale has been linked to the outcomes of liver transplant patients; however, the effect of KPS on the outcomes of the hepatocellular carcinoma (HCC) liver transplant population has not been fully elucidated. We aimed to investigate the association between pre-transplant KPS score and long-term outcomes in HCC patients listed for liver transplantation. Methods Adult HCC candidates listed on the Scientific Registry of Transplant Recipients (SRTR) database from January 1, 2011 to December 31, 2017 were grouped into group I (KPS 80–100%, n  = 8,379), group II (KPS 50–70%, n  = 8,091), and group III (KPS 10–40%, n  = 1,256) based on percentage KPS score at listing. Survival was compared and multivariable analysis was performed to identify independent predictors. Results Patients with low KPS score had a higher risk of removal from the waiting list. The 5-year intent-to-treat survival was 57.7% in group I, 53.2% in group II and 46.7% in group III ( P  < 0.001). The corresponding overall survival was 77.6%, 73.7% and 66.3% in three groups, respectively ( P  < 0.001). Multivariable analysis demonstrated that KPS was an independent predictor of intent-to-treat survival ( P  < 0.001, reference group I; HR 1.19 [95%CI 1.07–1.31] for group II, P  = 0.001; HR 1.63 [95%CI 1.34–1.99] for group III, P  < 0.001) and overall survival( P  < 0.001, reference group I; HR 1.16 [95%CI 1.05–1.28] for group II, P  = 0.004; HR 1.53 [95%CI 1.26–1.87] for group III, P  < 0.001). The cumulative 5-year recurrence rates was higher in group III patients (7.4%), compared with 5.2% in group I and 5.5% in group II ( P  = 0.037). However, this was not significant in the competing regression analysis. Conclusions Low pre-transplant KPS score is associated with inferior long-term survival in liver transplant HCC patients, but is not significantly associated with post-transplant tumor recurrence.