Associations between lifestyles and neutrophil-lymphocyte and platelet-lymphocyte ratios in colorectal cancer

A Novel Prognostic Index for Metastatic Colon Cancer: The Prognostic Immune Nutritional Index

Objective Systemic inflammation and nutrition are associated with survival outcomes in metastatic colon cancer (mCC) patients. A new and strong prognostic marker named the Prognostic Immune Nutritional Index (PINI) was proposed as the best marker for outcomes in metastatic colon cancer patients. This study aimed to evaluate the prognostic significance of PINI in mCC patients. Methods The data of 190 patients who were admitted to our center and diagnosed with mCC between 2010 and 2020 abiding by our inclusion criteria were reviewed retrospectively. Receiver operating characteristic (ROC) analysis was used to identify the optimum cutoff value of PINI for overall survival (OS). Results The mean age of the participants was 62.64±11.99 years. The median follow-up time was 25.81 months. According to PINI, the median OS in patients who had PINI<3 was 22.70 months (95% confidence interval (CI): 16.05-29.35), and the median OS in patients who had PINI≥3 was 38.83 months (95% CI: 26.98-37.01) (p<0.001). PINI score lower than 3 was an independent prognostic indicator in multivariate analysis. Conclusions PINI was discovered to be an independent prognostic factor in metastatic colorectal cancer. We believe that PINI, which can be calculated using a simple formula, will provide clinicians with important clues when deciding on individual treatment.

Non-linear association between long-term outcome and preoperative neutrophil-to-lymphocyte ratio in patients undergoing curative resection for gastric cancer: a retrospective analysis of 1335 cases in a tetrachotomous manner

Objective

Although the prognostic utility of the pretreatment neutrophil-to-lymphocyte ratio (NLR) has been widely reported for gastric cancer and several other malignancies, the optimal patient stratification methodologies for such analyses have yet to be established. We aimed to examine the predictive value of preoperative NLR in patients with operable gastric cancer, and to elucidate whether or not the relationship between long-term outcome and pretreatment NLR is monotonically linear.

Methods

Preoperative data from 1335 patients who underwent curative surgery for gastric cancer were retrospectively evaluated. Patients were divided into four groups (Q1-Q4) according to preoperative NLR (1.59, 2.11 and 2.96). Survival time was calculated applying the Cox proportional hazard model to both univariate and multivariate estimates.

Results

On univariate Cox regression analysis, preoperative NLR was significantly associated with overall survival (OS) and relapse-free survival (RFS). On subsequent multivariate analysis, preoperative NLR, as a tetrachotomous variable, was independently associated with OS and RFS (P = 0.028, 0.023, respectively). When comparing Q1 with Q3 or Q4 in multivariate analysis, there were no significant prognostic differences in OS (P = 0.23, 0.37, respectively) and RFS (P = 0.26, 0.46, respectively). The Q2 group showed significantly longer RFS than the Q1 group (hazard ratio 0.69, 95% confidence interval 0.48-0.99, P = 0.048).

Conclusions

Although preoperative NLR was significantly associated with long-term outcome in gastric cancer patients, the association was not linear.

Preoperative platelet to lymphocyte ratio is a valuable prognostic biomarker in patients with colorectal cancer

Objectives

Recent studies suggest that an elevated preoperative platelet to lymphocyte ratio (PLR) may be considered a poor prognostic biomarker in patients with colorectal cancer (CRC). The aim of this study was to evaluate the prognostic impact of PLR in patients with CRC.

Methods

We enrolled 1314 patients who underwent surgery for CRC between 2005 and 2011. Preoperative PLR level was stratified into quintiles for Kaplan-Meier analysis and multivariable Cox proportional hazard regression models.

Results

Higher PLR quintiles were significantly associated with poorer overall survival (P = 0.002). Multivariate analysis showed that PLR was an independent risk factor for overall survival (OS) (P = 0.034). Patients in PLR quintile 5 had lower overall survival than in quintile 1 (hazard ratio (HR) = 1.701, 95% confidence interval (CI): 1.267–2.282, P < 0.001). Although patients in PLR quintile 5 had significantly lower disease-free survival (DFS) than in quintile 1 (HR = 1.522, 95% CI: 1.114–2.080, P = 0.008), this association was not significant after multivariable adjustment (P = 0.075). In the subgroup analysis, PLR remained an independent factor in terms of advanced tumor stage (III, IV), male sex, carcinoembryonic antigen (≤ 5 ng/ml), age (> 65 years) and body mass index (≤ 25) (P < 0.05 for all measurements). The results remained unchanged when the PLR was analyzed as a dichotomous variable by applying different cut-off values of 150, 185, 220.

Conclusions

Elevated preoperative PLR was independently associated with an increased risk of mortality in patients with CRC. The utility of PLR may help to improve prognostic predictors.

Prognostic efficacy of inflammation-based markers in patients with curative colorectal cancer resection

AIM

To evaluate the prognostic significance of neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), lymphocyte-to-monocyte ratio (LMR), and prognostic nutritional index (PNI) and other clinicopathological factors in patients undergoing curative resection of colon cancer.

METHODS

183 patients with histologically proven colorectal cancer who had undergone potentially curative resection between 2010 and 2016 at Ankara Numune Training and Research Hospital were retrospectively analyzed and clinicopathological characteristics included age, sex, tumor type, grade, size and localization, the number of metastatic and total number of lymph nodes removed, vascular and perineural invasion of the tumor, TNM stages, tumor marker levels (CEA, CA19-9, AFP, CA-125, CA15-3), complete blood counts, albumin levels, overall survival (months), NLR, PLR, LMR and PNI ratios were retrospectively reviewed and analyzed from the electronic database. The primary outcome measure was overall survival.

RESULTS

Regarding overall survival, on univariate analysis the following variables were significantly associated with poor outcome following resection: T-stage (P = 0.037), lymph node invasion (P = 0.037), cancer stage (P = 0.034), CEA (P = 0.042), CA19-9 (P = 0.004), and PNI (P = 0.001). To evaluate the independent prognostic value, multivariate Cox proportional hazard analysis to control for other prognostic factors was used. Using cancer-specific death as an end point for NLR, PLR, LMR, PNI and CA19-9 the optimal cut off values were calculated by ROC analysis. Regarding overall survival, on multivariate analysis high CA19-9 (HR = 1.001, 95%CI: 1.00-1.002, P = 0.012) and low PNI (HR = 0.938, 95%CI: 0.891-0.987, P = 0.014) were the only variables independently associated with shortened overall survival. Patients with a PNI < 35 had a median OS of 52.25 mo. In contrast, patients with an PNI > 35 had a median OS of 66 mo. Patients with a CA 19-9 < 17 had a median OS of 66 mo and in patients with a CA19-9 > 17 had a median OS of 53.76 mo.

CONCLUSION

This study shows that decrease in the PNI and increase in CA 19-9 is associated with poor survival in patients with resectable colon cancer.

The prognostic value of neutrophil-to-lymphocyte ratio in colorectal cancer: A systematic review

BACKGROUND AND OBJECTIVES

The detection of a simple and reliable prognostic biomarker for colorectal cancer (CRC) outcomes remains a significant challenge. The use of neutrophil-to-lymphocyte ratio (NLR), has been reported to predict surgical and survival outcomes. The aim of our review was to assess the predictive value of pre-operative NLR in predicting post-operative outcomes in CRC.

METHODS

A systematic review of the available studies on NLR in CRC was performed. Primarily, we assessed its ability to predict survival outcomes, and highlight values that would help adjuvant therapy choices.

RESULTS

19 studies comprising 10 259 patients were included. Eleven and eight studies reported on patients with localized CRC and colorectal liver metastasis, respectively. Five-year survival for those with localized CRC was 77.2% in patients with a "low" pre-operative NLR versus 50.8% in those with a "high" pre-operative NLR value. Alternatively, for patients with colorectal liver metastasis, patients with a "high" pre-operative NLR value had a 5-year survival of 27%.

CONCLUSION

Elevated pre-operative NLR>5 is associated with poorer long-term survival in both patients with localized CRC and those with liver metastasis. NLR is a useful biomarker in delineating those patients with poorer prognosis and whom may benefit from adjuvant therapies.

The Preoperative Neutrophil-to-lymphocyte Ratio is a Novel Biomarker for Predicting Worse Clinical Outcomes in Non-muscle Invasive Bladder Cancer Patients with a Previous History of Smoking

PURPOSE

We speculated that a heterogeneous population of non-muscle invasive bladder cancer (NMIBC) patients with a previous history of smoking may be more precisely stratified by a biomarker associated with tumor aggressiveness and then focused on the preoperative neutrophil-to-lymphocyte ratio (pre-NLR), which is a simple index of systemic inflammation.

METHODS

Our study population comprised 605 patients initially diagnosed with NMIBC at our 3 institutions between 1995 and 2013. We analyzed the relationships between pre-NLR levels and clinical outcomes in NMIBC. A pre-NLR level of ≥2.2 was defined as elevated according to a calculation by a receiver-operating curve analysis.

RESULTS

In overall, a total of 296 patients (48.9 %) had pre-NLR ≥ 2.2, and the pre-NLR level was one of independent risk factors for tumor recurrence and stage progression. Among 344 patients with a previous history of smoking, 184 (53.5 %) had pre-NLR ≥ 2.2 and the pre-NLR level was one of independent risk factors for tumor recurrence and stage progression. The 5-year recurrence-free survival and progression-free survival rates in patients with pre-NLR < 2.2 were 66.3 and 97.5 %, respectively, which were significantly higher than those in their counterparts (31.7 and 90.4 %, p < 0.001). In either subgroup of patients who were current smokers (N = 175) or former smokers (N = 169), the pre-NLR level was the only independent risk factor for tumor recurrence. The pre-NLR level was not associated with tumor recurrence or stage progression in 261 nonsmoking patients.

CONCLUSIONS

Pre-NLR levels may be a useful marker for identifying worse clinical outcomes in NMIBC patients, particularly those with a previous history of smoking.

Risk factors for colorectal neoplasms based on colonoscopy and pathological diagnoses of Chinese citizens: a multicenter, case-control study

PURPOSE

Since observational data in the urban residents are required to better assess the risk factors of colorectal neoplasm occurrence and the effectiveness of colonoscopy screening and surveillance, we conducted a case-control study at multicenters in China to identify patient characteristics and neoplasm features of colorectal adenoma (CRA) and colorectal carcinoma (CRC).

METHODS

A total of 4089 patients who had undergone a colonoscopy from 19 hospitals were enrolled, of which 1106 had CRA and 466 had CRC. They were compared with controls. The analysis provides features and risk factors of colorectal neoplasm using multivariate logistic regression.

RESULTS

Increasing age, a family history of colorectal cancer or previous cases of colorectal adenoma or hypertension disease, gastrointestinal surgery, regular intake of pickled food (adjusted odds ratio [aOR] 1.42, 95 % confidence interval [CI], 1.048-1.924), consumption of alcohol, and a positive result of fecal occult blood testing (FOBT; aOR 2.509, 95 % CI 1.485-4.237) were associated with an increased risk of CRA. In the CRC group, increasing age, regular intake of pickled foods, and a positive FOBT result were risk factors. In addition, a positive abdominal computed tomography (CT) before a colonoscopy and physical signs of emaciation were also significantly associated with an increasing risk of colorectal carcinoma. Regular intake of vegetables decreased the risk of both CRA and CRC.

CONCLUSIONS

Age, pickled foods, and a positive FOBT are risk factors for colorectal neoplasm. Vegetable intake was associated with a decreased risk of CRA and CRC.