scholarly journals Clinical significance of mucinous component in colorectal adenocarcinoma: a propensity score-matched study

BMC Cancer ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Chuanwang Yan ◽  
Hui Yang ◽  
Lili Chen ◽  
Ran Liu ◽  
Wei Shang ◽  
...  
Keyword(s):  
Risk Factor ◽  
Propensity Score ◽  
Clinical Significance ◽  
Roc Curve ◽  
Colorectal Adenocarcinoma ◽  
Univariate Analysis ◽  
Multivariable Analysis ◽  
Clinicopathological Features ◽  
Mucinous Component ◽  
Before And After

Abstract Background This study aims to investigate the clinical significance and prognostic value of mucinous component (MC) in colorectal adenocarcinoma (AC). Methods Patients with colorectal AC and AC with MC (ACMC) (1–100%) underwent surgical resection between January 2007 and February 2018 were retrospectively reviewed. Propensity score matching (PSM) was performed according to a 1:1 ratio. Receiver-operating characteristic (ROC) curve was used to identify the optimal cut-off value of MC ratio for prognostic prediction. The clinicopathological features and 3-year overall survival (OS) of AC patients, mucinous adenocarcinoma (MAC) (MC > 50%) patients, and ACMC (1–50%) patients were compared before and after matching. Multivariable analysis was used for analyzing independent risk factors related to prognosis. Results A total of 532 patients were enrolled in this study. Patients with AC, MAC, and ACMC (1–50%) exhibited different clinicopathological features. However, their 3-year OS rates were similar (82.00% vs. 74.11% vs. 81.48%, P = 0.38). After matching, ROC curve determined 70% as the optimal cut-off value. And patients with ACMC > 70% had a much poorer 3-year OS compared with ACMC (1–70%) patients and AC patients (47.37% vs. 86.15% vs. 79.76%, P < 0.001). In addition, ACMC > 70% was revealed as a risk factor for poor survival in univariate analysis (HR = 1.643, 95%CI = 1.025–2.635, P = 0.039), though not an independent risk factor in multivariable analysis (HR = 1.550, 95%CI = 0.958–2.507, P = 0.074). Conclusions MAC is usually diagnosed at an advanced stage. MAC has a similar survival with AC and ACMC (1–50%) patients before and after matching. Patients with ACMC > 70% exhibited a much poorer OS, and should be given more clinical attention.

scholarly journals Clinical features and outcomes of combined hepatocellular carcinoma and cholangiocarcinoma versus hepatocellular carcinoma versus cholangiocarcinoma after surgical resection: a propensity score matching analysis

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Chih-Wen Lin ◽  
Tsung-Chin Wu ◽  
Hung-Yu Lin ◽  
Chao-Ming Hung ◽  
Pei-Min Hsieh ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Liver Cancer ◽  
Propensity Score ◽  
Propensity Score Matching ◽  
Surgical Resection ◽  
Disease Free Survival ◽  
Clinicopathological Features ◽  
Free Survival ◽  
Before And After ◽  
Disease Free

Abstract Background Combined hepatocellular carcinoma and cholangiocarcinoma (cHCC-CC) is an infrequent type of primary liver cancer that comprises hepatocellular carcinoma (HCC) and cholangiocarcinoma (CC). This study investigated the clinicopathological features and prognosis among cHCC-CC, HCC, and CC groups. Methods We prospectively collected the data of 608 patients who underwent surgical resection for liver cancer between 2011 and 2018 at E-Da Hospital, I-Shou University, Kaohsiung, Taiwan. Overall, 505 patients with cHCC-CC, HCC, and CC were included, and their clinicopathological features, overall survival (OS), and recurrence were recorded. OS and recurrence rates were analyzed using the Kaplan–Meier analysis. Results In the entire cohort, the median age was 61 years and 80% were men. Thirty-five (7.0%) had cHCC-CC, 419 (82.9%) had HCC, and 51 (10.1%) had CC. The clinicopathological features of the cHCC-CC group were more identical to those of the HCC group than the CC group. OS was significantly lower in the cHCC-CC group than in the HCC group but was not significantly higher in the cHCC-CC group than in the CC group. The median OS of cHCC-CC, HCC, and CC groups was 50.1 months [95% confidence interval (CI): 38.7–61.2], 62.3 months (CI: 42.1–72.9), and 36.2 months (CI: 15.4–56.5), respectively. Cumulative OS rates at 1, 3, and 5 years in cHCC-CC, HCC, and CC groups were 88.5%, 62.2%, and 44.0%; 91.2%, 76.1%, and 68.0%; and 72.0%, 48.1%, and 34.5%, respectively. After propensity score matching (PSM), OS in the cHCC-CC group was not significantly different from that in the HCC or CC group. However, OS was significantly higher in the HCC group than in the CC group before and after PSM. Furthermore, the disease-free survival was not significantly different among cHCC-CC, HCC, and CC groups before and after PSM. Conclusion The clinicopathological features of the cHCC-CC group were more identical to those of the HCC group than the CC group. The OS rate was significantly lower in the cHCC-CC group than the HCC group. However, after PSM, OS and disease-free survival in the cHCC-CC group were not significantly different from those in the HCC or CC group.

Docetaxel (DOC) versus new androgen receptor-targeted agent (ART) in metastatic castrate-resistant prostate cancer (mCRPC) patients (pts) having received abiraterone (ABI) or enzalutamide (ENZA) as first-line (L1).

2020 ◽  
Vol 38 (6_suppl) ◽  
pp. 109-109
Author(s):  
Antonin Broyelle ◽  
André-Michel Bimbai ◽  
Aurelien Carnot ◽  
Diane Pannier ◽  
Samira Makhloufi ◽  
...  
Keyword(s):  
Propensity Score ◽  
Cox Model ◽  
Univariate Analysis ◽  
Multivariable Analysis ◽  
Population Data ◽  
Castration Resistance ◽  
Growth Modulation ◽  
Optimal Sequence ◽  
Castrate Resistant ◽  
Ecog Ps

109 Background: The main treatments for mCRPC are 2 new ART (ABI, ENZA) and 2 taxanes [doctaxel (DOC) and Cabazitaxel]. The optimal sequence is currently not defined. An increasing number of pts are first treated with one of ART. In this population, data about efficacy of 2nd line (L2) are spare. We designed a retrospective study to evaluate activity of DOC vs ART in mCRPC pts treated with ART as L1 therapy. Methods: In this observational cohort study, we included all consecutive pts with ENZA or ABI as L1 for chemo-naïve mCRPC. We measured PFS and OS during both L1 & L2. To compare the efficacy of DOC versus ART as L2, we measured Growth Modulation Index (GMI=Time To progression with L2/TTP with L1) and we used Cox model to compare PFS/OS in both arm, in both univariate & multivariate analysis using propensity score. Results: We included 175 pts, including 75 treated ENZA and 100 with ABI as L1. 69 (39%) pts received DOC and 30 (17%) pts received ART as L2; 76 (43%) did not receive L2. Median follow-up was 36 months (CI95%: 30.4 - 40). From the starting of L1, PFS was 13.0 months (CI95% 11.0 – 15.0), OS was 34.5 months (CI95%: 28.7 – 38.6). There was no difference between ENZA and ABI in PFS and OS (p=0.684). From the start of L2, the median PFS was 6.0 months (CI95%: 5.0 – 6.6) and the median OS was 18.0 months (CI95%: 13.9 – 21.4). We found a significant benefit in PFS for DOC vs ART in L2 (6.7 months vs 4.0 months, HR 0.60 [CI95%: 0.31 – 0.96], p=0.03). This benefit did not reach the level of significance in OS (19.5 months vs 12.0 months, HR 0.60 [CI95%: 0.35 – 1.03], p=0.1). ECOG-PS and time of castration resistance were associated with OS in multivariable analysis and then used in propensity score. After adjustment to both parameters, we found no difference in PFS (p=0.2) and OS (p=0.1) in pts receiving DOC vs ART as L2. Only 56% of pts received L2. Probability for GMI being >1.33 was not significantly different between DOC (19%) and ART (13%), p=0.099. Conclusions: ABI and ENZA are similarly active in L1 mCRPC. In univariate analysis, L2 with DOC seemed more active than ART. However this benefit was not retained after adjustment to propensity score.

scholarly journals Clinical features and outcomes of combined hepatocellular carcinoma and cholangiocarcinoma versus hepatocellular carcinoma versus cholangiocarcinoma after surgical resection: A propensity score matching analysis

2020 ◽  
Author(s):  
Chih-Wen Lin ◽  
Tsung-Chin Wu ◽  
Hung-Yu Lin ◽  
Chao-Ming Hung ◽  
Pei-Min Hsieh ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Liver Cancer ◽  
Propensity Score ◽  
Propensity Score Matching ◽  
Surgical Resection ◽  
Disease Free Survival ◽  
Clinicopathological Features ◽  
Free Survival ◽  
Before And After ◽  
Disease Free

Abstract Background: Combined hepatocellular carcinoma and cholangiocarcinoma (cHCC-CC) is an infrequent type of primary liver cancer that comprises hepatocellular carcinoma (HCC) and cholangiocarcinoma (CC). This study investigated the clinicopathological features and prognosis among cHCC-CC, HCC, and CC groups.Methods: We prospectively collected the data of 608 patients who underwent surgical resection for liver cancer between 2011 and 2018 at E-Da Hospital, I-Shou University, Kaohsiung, Taiwan. Overall, 505 patients with cHCC-CC, HCC, and CC were included, and their clinicopathological features, overall survival (OS), and recurrence were recorded. OS and recurrence rates were analyzed using the Kaplan–Meier analysis.Results: In the entire cohort, the median age was 61 years and 80% were men. Thirty-five (7.0%) had cHCC-CC, 419 (82.9%) had HCC, and 51 (10.1%) had CC. The clinicopathological features of the cHCC-CC group were more identical to those of the HCC group than the CC group. OS was significantly lower in the cHCC-CC group than in the HCC group but was not significantly higher in the cHCC-CC group than in the CC group. The median OS of cHCC-CC, HCC, and CC groups was 50.1 months [95% confidence interval (CI): 38.7–61.2], 62.3 months (CI: 42.1–72.9), and 36.2 months (CI: 15.4–56.5), respectively. Cumulative OS rates at 1, 3, and 5 years in cHCC-CC, HCC, and CC groups were 88.5%, 62.2%, and 44.0%; 91.2%, 76.1%, and 68.0%; and 72.0%, 48.1%, and 34.5%, respectively. After propensity score matching (PSM), OS in the cHCC-CC group was not significantly different from that in the HCC or CC group. However, OS was significantly higher in the HCC group than in the CC group before and after PSM. Furthermore, the disease-free survival was not significantly different among cHCC-CC, HCC, and CC groups before and after PSM.Conclusion: The clinicopathological features of the cHCC-CC group were more identical to those of the HCC group than the CC group. The OS rate was significantly lower in the cHCC-CC group than the HCC group. However, after PSM, OS and disease-free survival in the cHCC-CC group were not significantly different from those in the HCC or CC group.

scholarly journals Hemodialysis is a strong risk factor for post-endoscopic sphincterotomy bleeding in patients with choledocholithiasis

2018 ◽  
Vol 06 (05) ◽  
pp. E568-E574 ◽  
Author(s):  
So Nakaji ◽  
Nobuto Hirata ◽  
Hiroki Matsui ◽  
Toshiyasu Shiratori ◽  
Masayoshi Kobayashi ◽  
...  
Keyword(s):  
Risk Factor ◽  
Propensity Score ◽  
Endoscopic Sphincterotomy ◽  
Outcome Measure ◽  
Propensity Score Analysis ◽  
Univariate Analysis ◽  
Risk Difference ◽  
Secondary Outcome ◽  
Bleeding Rate ◽  
Score Analysis

Abstract Background and study aims Hemodialysis (HD) is considered one of the risk factors for post-endoscopic sphincterotomy (ES) bleeding. Therefore, we conducted a retrospective study to evaluate HD as a risk factor for post-ES bleeding in patients with choledocholithiasis. Patients and methods We used the post-ES bleeding rate as the main outcome measure. To evaluate the influence of HD on the risk of post-ES bleeding, logistic regression and propensity score analyses were conducted. In addition, univariate analysis-based comparisons of various clinical parameters (as secondary outcome measures) were performed between the patients in the HD and non-HD groups that experienced post-ES bleeding. Results A total of 1518 patients were enrolled. In the multivariate analysis, a platelet count of < 50,000, anticoagulant therapy, bleeding during ES, and HD were found to be significantly associated with post-ES bleeding (odds ratio [OR]: 35.30, 95 % confidence interval [CI]: 3.81 – 328.00; OR: 4.39, 95 % CI: 1.53 – 12.60; OR: 4.28, 95 % CI: 2.30 – 7.97; and OR: 13.30, 95 % CI: 5.78 – 30.80, respectively). Propensity score matching created 28 matched pairs. Propensity score analysis showed that the risk difference between the groups was 0.214 (95 % CI: 0.022 – 0.407). In a comparison between the patients in the HD and non-HD groups that suffered post-ES bleeding, it was found that the post-ES bleeding was significantly more severe in the HD group (p = 0.033), and massive blood transfusions and long periods of hospitalization were more frequently required in the HD group (p = 0.008 and p < 0.001, respectively). Conclusion HD is an independent risk factor for post-ES bleeding and makes post-ES bleeding more serious.

scholarly journals Effectiveness of Teicoplanin Versus β-lactam for Bacteremia Due to Methicillin-Susceptible Staphylococcus Aureus: A Propensity Score-Based Study

2020 ◽  
Author(s):  
Chen-Hsiang Lee ◽  
Ching-Yen Tsai ◽  
I-Ling Chen
Keyword(s):  
Staphylococcus Aureus ◽  
Risk Factor ◽  
Treatment Group ◽  
Propensity Score ◽  
Propensity Score Matching ◽  
Clinical Outcomes ◽  
Significant Risk ◽  
Outcome Analysis ◽  
Significant Difference ◽  
Before And After

Abstract Background: Many studies have shown that vancomycin is inferior to β-lactam antibiotics in terms of effectiveness in the treatment of methicillin-susceptible Staphylococcus aureus (MSSA) bacteremia. However, limited data are available regarding the comparison of clinical outcomes between patients receiving initial teicoplanin and those receiving β-lactam antibiotics for MSSA bacteremia.Methods: Eighty-four adults with MSSA bacteremia were included: initial teicoplanin treatment group (n=28) and β-lactam treatment group (n=56). The two groups were further stratified based on propensity score matching according to the outcome analysis using a logistic regression model. We investigated the clinical outcomes between the groups before and after propensity score matching after treatment completion.Results: Pittsburgh bacteremia score ≥4 (odds ratio, 60.6; 95%CI, 7.4–496.8) was an independent risk factor for unfavorable outcome. After propensity score matching, the initial teicoplanin treatment group and the β-lactam treatment group consisted of 28 patients each. No statistically significant differences were observed in the proportions of patients with favorable outcomes and 30-day overall mortality rates between the groups before and after propensity score matching after the completion of teicoplanin or β-lactam treatment. The Kaplan-Meier 30-day survival curve also showed no significant difference between the patients receiving initial teicoplanin treatment and those receiving β-lactam treatment before and after matching (hazard ratio, 1.84, 95%CI, 0.60–5.64; and 3.12, 95%CI, 0.98–9.99, respectively).Conclusions: There were no significant difference in clinical outcomes between initial teicoplanin treatment and β-lactam treatment among patients with MSSA bacteremia. Pittsburgh bacteremia score ≥4 was a significant risk factor for mortality.

scholarly journals Correlation analysis between preoperative systemic immune inflammation index and prognosis of patients after radical gastric cancer surgery: based on propensity score matching method

2022 ◽  
Vol 20 (1) ◽  
Author(s):  
Xu Zhaojun ◽  
Chen Xiaobin ◽  
An Juan ◽  
Yuan Jiaqi ◽  
Jiang Shuyun ◽  
...  
Keyword(s):  
Overall Survival ◽  
Risk Factor ◽  
Propensity Score ◽  
Propensity Score Matching ◽  
Roc Curve ◽  
Independent Risk Factor ◽  
Gastrointestinal Surgery ◽  
Kaplan Meier ◽  
Significant Difference ◽  
Immune Inflammation

Abstract Background To explore the correlation between the preoperative systemic immune inflammation index (SII) and the prognosis of patients with gastric carcinoma (GC). Methods The clinical data of 771 GC patients surgically treated in the Department of Gastrointestinal Surgery, Qinghai University Affiliated Hospital from June 2010 to June 2015 were retrospectively analyzed, and their preoperative SII was calculated. The optimal cut-off value of preoperative SII was determined using the receiver operating characteristic (ROC) curve, the confounding factors between the two groups were eliminated using the propensity score matching (PSM) method, and the correlation between preoperative SII and clinicopathological characteristics was assessed by chi-square test. Moreover, the overall survival was calculated using Kaplan-Meier method, the survival curve was plotted, and log-rank test was performed for the significance analysis between the curves. Univariate and multivariate analyses were also conducted using the Cox proportional hazards model. Results It was determined by the ROC curve that the optimal cut-off value of preoperative SII was 489.52, based on which 771 GC patients were divided into high SII (H-SII) group and low SII (L-SII) group, followed by PSM in the two groups. The results of Kaplan-Meier analysis showed that before and after PSM, the postoperative 1-, 3-, and 5-year survival rates in L-SII group were superior to those in H-SII group, and the overall survival rate had a statistically significant difference between the two groups (P < 0.05). Before PSM, preoperative SII [hazard ratio (HR) = 2.707, 95% confidence interval (CI) 2.074-3.533, P < 0.001] was an independent risk factor for the prognosis of GC patients. After 1:1 PSM, preoperative SII (HR = 2.669, 95%CI 1.881–3.788, P < 0.001) was still an independent risk factor for the prognosis of GC patients. Conclusions Preoperative SII is an independent risk factor for the prognosis of GC patients. The increase in preoperative SII in peripheral blood indicates a worse prognosis.

scholarly journals Clinical features and outcomes of combined hepatocellular carcinoma and cholangiocarcinoma versus hepatocellular carcinoma versus cholangiocarcinoma after surgical resection: A propensity score matching analysis

2021 ◽  
Author(s):  
Chih-Wen Lin ◽  
Tsung-Chin Wu ◽  
Hung-Yu Lin ◽  
Chao-Ming Hung ◽  
Pei-Min Hsieh ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Liver Cancer ◽  
Propensity Score ◽  
Propensity Score Matching ◽  
Surgical Resection ◽  
Disease Free Survival ◽  
Clinicopathological Features ◽  
Free Survival ◽  
Before And After ◽  
Disease Free

Abstract Background: Combined hepatocellular carcinoma and cholangiocarcinoma (cHCC-CC) is an infrequent type of primary liver cancer that comprises hepatocellular carcinoma (HCC) and cholangiocarcinoma (CC). This study investigated the clinicopathological features and prognosis among cHCC-CC, HCC, and CC groups.Methods: We prospectively collected the data of 608 patients who underwent surgical resection for liver cancer between 2011 and 2018 at E-Da Hospital, I-Shou University, Kaohsiung, Taiwan. Overall, 505 patients with cHCC-CC, HCC, and CC were included, and their clinicopathological features, overall survival (OS), and recurrence were recorded. OS and recurrence rates were analyzed using the Kaplan–Meier analysis.Results: In the entire cohort, the median age was 61 years and 80% were men. Thirty-five (7.0%) had cHCC-CC, 419 (82.9%) had HCC, and 51 (10.1%) had CC. The clinicopathological features of the cHCC-CC group were more identical to those of the HCC group than the CC group. OS was significantly lower in the cHCC-CC group than in the HCC group but was not significantly higher in the cHCC-CC group than in the CC group. The median OS of cHCC-CC, HCC, and CC groups was 50.1 months [95% confidence interval (CI): 38.7–61.2], 62.3 months (CI: 42.1–72.9), and 36.2 months (CI: 15.4–56.5), respectively. Cumulative OS rates at 1, 3, and 5 years in cHCC-CC, HCC, and CC groups were 88.5%, 62.2%, and 44.0%; 91.2%, 76.1%, and 68.0%; and 72.0%, 48.1%, and 34.5%, respectively. After propensity score matching (PSM), OS in the cHCC-CC group was not significantly different from that in the HCC or CC group. However, OS was significantly higher in the HCC group than in the CC group before and after PSM. Furthermore, the disease-free survival was not significantly different among cHCC-CC, HCC, and CC groups before and after PSM.Conclusion: The clinicopathological features of the cHCC-CC group were more identical to those of the HCC group than the CC group. The OS rate was significantly lower in the cHCC-CC group than the HCC group. However, after PSM, OS and disease-free survival in the cHCC-CC group were not significantly different from those in the HCC or CC group.

scholarly journals Teicoplanin versus β-lactam for febrile patients with Staphylococcus-like bacteremia: focus on methicillin-susceptible Staphylococcus aureus bacteremia

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Ching-Yen Tsai ◽  
Chen-Hsiang Lee ◽  
I-Ling Chen
Keyword(s):  
Staphylococcus Aureus ◽  
Risk Factor ◽  
Treatment Group ◽  
Propensity Score ◽  
Propensity Score Matching ◽  
Clinical Outcomes ◽  
Significant Risk ◽  
Outcome Analysis ◽  
Significant Difference ◽  
Before And After

Abstract Background Many studies have shown that vancomycin is inferior to β-lactam antibiotics in terms of effectiveness in the treatment of methicillin-susceptible Staphylococcus aureus (MSSA) bacteremia. However, limited data are available regarding the comparison of clinical outcomes between patients receiving initial teicoplanin and those receiving β-lactam antibiotics for MSSA bacteremia. Methods Eighty-four adults with MSSA bacteremia were included: initial teicoplanin treatment group (n = 28) and β-lactam treatment group (n = 56). The two groups were further stratified based on propensity score matching according to the outcome analysis using a logistic regression model. We investigated the clinical outcomes between the groups before and after propensity score matching after treatment completion. Results Pittsburgh bacteremia score ≥ 4 (odds ratio, 60.6; 95%CI, 7.4–496.8) was an independent risk factor for unfavorable outcome. After propensity score matching, the initial teicoplanin treatment group and the β-lactam treatment group consisted of 28 patients each. No statistically significant differences were observed in the proportions of patients with favorable outcomes and 30-day overall mortality rates between the groups before and after propensity score matching after the completion of teicoplanin or β-lactam treatment. The Kaplan-Meier 30-day survival curve also showed no significant difference between the patients receiving initial teicoplanin treatment and those receiving β-lactam treatment before and after matching (hazard ratio, 1.84, 95%CI, 0.60–5.64; and 3.12, 95%CI, 0.98–9.99, respectively). Conclusions There were no significant difference in clinical outcomes between initial teicoplanin treatment and β-lactam treatment among patients with MSSA bacteremia. Pittsburgh bacteremia score ≥ 4 was a significant risk factor for mortality.

scholarly journals Effectiveness of teicoplanin versus β-lactam for bacteremia due to methicillin-susceptible Staphylococcus aureus: a propensity score-based study

2020 ◽  
Author(s):  
Ching-Yen Tsai ◽  
Chen-hsiang Lee ◽  
I-Ling Chen
Keyword(s):  
Staphylococcus Aureus ◽  
Risk Factor ◽  
Treatment Group ◽  
Propensity Score ◽  
Propensity Score Matching ◽  
Clinical Outcomes ◽  
Significant Risk ◽  
Outcome Analysis ◽  
Significant Difference ◽  
Before And After

Abstract Background: Many studies have shown that vancomycin is inferior to β-lactam antibiotics in terms of effectiveness in the treatment of methicillin-susceptible Staphylococcus aureus (MSSA) bacteremia. However, limited data are available regarding the comparison of clinical outcomes between patients receiving initial teicoplanin and those receiving β-lactam antibiotics for MSSA bacteremia.Methods: Eighty-four adults with MSSA bacteremia were included: initial teicoplanin treatment group (n=28) and β-lactam treatment group (n=56). The two groups were further stratified based on propensity score matching according to the outcome analysis using a logistic regression model. We investigated the clinical outcomes between the groups before and after propensity score matching after treatment completion.Results: Pittsburgh bacteremia score ≥4 (odds ratio, 60.6; 95%CI, 7.4–496.8) was an independent risk factor for unfavorable outcome. After propensity score matching, the initial teicoplanin treatment group and the β-lactam treatment group consisted of 28 patients each. No statistically significant differences were observed in the proportions of patients with favorable outcomes and 30-day overall mortality rates between the groups before and after propensity score matching after the completion of teicoplanin or β-lactam treatment. The Kaplan-Meier 30-day survival curve also showed no significant difference between the patients receiving initial teicoplanin treatment and those receiving β-lactam treatment before and after matching (hazard ratio, 1.84, 95%CI, 0.60–5.64; and 3.12, 95%CI, 0.98–9.99, respectively).Conclusions: There were no significant difference in clinical outcomes between initial teicoplanin treatment and β-lactam treatment among patients with MSSA bacteremia. Pittsburgh bacteremia score ≥4 was a significant risk factor for mortality.

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