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propensity score

X Yao, E A Stewart, S K Laughlin-Tommaso, H C Heien, B J Borah
OBJECTIVES: To report patterns and patient characteristics associated with initiation of and persistence with medical therapies for uterine fibroid-related heavy menstrual bleeding. DESIGN: Retrospective cohort study. SETTING: US commercial insurance claims database. POPULATION: 41 561 women aged 18-54 years with uterine fibroids and heavy menstrual bleeding who initiated medical therapies from January 2000 through December 2013...
October 21, 2016: BJOG: An International Journal of Obstetrics and Gynaecology
Nils D Arvold, Matthew Cefalu, Yun Wang, Corwin Zigler, Deborah Schrag, Francesca Dominici
It is unknown whether the addition of temozolomide (TMZ) to radiotherapy (RT) is associated with improved overall survival (OS) among older glioblastoma patients. We performed a retrospective cohort SEER-Medicare analysis of 1652 patients aged ≥65 years with glioblastoma who received ≥10 fractions of RT from 2005 to 2009, or from 1995 to 1999 before TMZ was available. Three cohorts were assembled based on diagnosis year and treatment initiated within 60 days of diagnosis: (1) 2005-2009 and TMZ/RT, (2) 2005-2009 and RT only, or (3) 1995-1999 and RT only...
October 21, 2016: Journal of Neuro-oncology
Hisham Hussan, Peter P Stanich, Darrell M Gray, Somashekar G Krishna, Kyle Porter, Darwin L Conwell, Steven K Clinton
BACKGROUND: Morbid obesity is associated with worse colorectal cancer (CRC) perioperative outcomes. The impact of bariatric surgery on these outcomes is unknown. METHODS: The National Inpatient Sample Database (2006-2012) was used to identify adults with prior bariatric surgery (divided into BMI ≤35 kg/m(2) and BMI >35 kg/m(2)) or morbid obesity that underwent CRC surgery. Main outcomes were mortality, surgical complications and health care utilization. RESULTS: There were 1813 patients with prior bariatric surgery and 22,552 morbidly obese patients that underwent CRC surgery between 2006 and 2012...
October 21, 2016: Obesity Surgery
D E Beaton, M Vidmar, K B Pitzul, R Sujic, N K Rotondi, E R Bogoch, J E M Sale, R Jain, J Weldon
: We evaluated the impact of a more intensive version of an existing post-fracture coordinator-based fracture prevention program and found that the addition of a full-risk assessment improved treatment rates. These findings provide additional support for more intensive programs aimed at reducing the risk of re-fractures. INTRODUCTION: Evidence-based guidelines support coordinator-based programs to improve post-fracture osteoporosis guideline uptake, with more intensive programs including bone mineral density (BMD) testing and/or treatment being associated with better patient outcomes...
October 21, 2016: Osteoporosis International
Omar Mahmoud, Lara Hathout, Sherif G Shaaban, Mohamed A Elshaikh, Sushil Beriwal, William Small
PURPOSE: The Gynecologic Oncology group (GOG) 0263 trial is currently exploring whether adding chemotherapy to adjuvant radiotherapy improves recurrence-free and/or overall survival in stage IB-IIA cervical cancer patients with pathologic intermediate-risk factors. Using the National Cancer Data Base, we evaluated the benefit of adjuvant chemoradiotherapy over adjuvant radiotherapy alone in the community practice setting. MATERIALS: The analysis included 869 stage IB-IIA cervical cancer patients who underwent radical hysterectomy retrieving intermediate-risk factors justifying adjuvant therapy...
October 18, 2016: Gynecologic Oncology
John Stogner, Julia A Martinez, Bryan Lee Miller, Kenneth J Sher
BACKGROUND: Underage college students who obtain and use false identification (fake ID) are at risk for negative outcomes. However, it is currently unclear how uniquely the fake ID itself serves as a vehicle to subsequent harm (i.e., the "fake ID effect") over and above general and trait-related risk factors (e.g., deviant peers, low self-control). METHODS: To investigate whether the "fake ID effect" would hold after accounting for phenotypic risk, we utilized propensity score matching (PSM) in a cross-sectional sample of 1,454 students, and a longitudinal replication sample of 3,720 undergraduates...
October 21, 2016: Alcoholism, Clinical and Experimental Research
Dyfrig A Hughes, Jannine Poletti-Hughes
BACKGROUND: Concerns about the high cost of orphan drugs has led to questions being asked about the generosity of the incentives for development, and associated company profits. METHODS: We conducted a retrospective, propensity score matched study of publicly-listed orphan companies. Cases were defined as holders of orphan drug market authorisation in Europe or the USA between 2000-12. Control companies were selected based on their propensity for being orphan drug market authorisation holders...
2016: PloS One
Soichi Kojima, Takao Hiraki, Hideo Gobara, Toshihiro Iguchi, Hiroyasu Fujiwara, Yusuke Matsui, Toshiharu Mitsuhashi, Susumu Kanazawa
PURPOSE: To evaluate retrospectively the fracture risk of totally implanted venous access devices connected to Groshong silicone (SC) versus polyurethane (PU) catheters, inserted via the internal jugular vein. MATERIALS AND METHODS: The study population comprised 384 SC and 221 PU central venous catheters implanted via the internal jugular vein. The presence of catheter fracture was evaluated. Variables possibly related to catheter fracture were evaluated. First, in order to determine the factors associated with fracture, fracture rates were compared with the log-rank test between the two groups divided by each of the variables...
October 21, 2016: Journal of Vascular Access
C Jason Wang, Skye H Cheng, Jen-You Wu, Yi-Ping Lin, Wen-Hsin Kao, Chia-Li Lin, Yin-Jou Chen, Shu-Ling Tsai, Feng-Yu Kao, Andrew T Huang
Importance: Value-driven payment system reform is a potential tool for aligning economic incentives with the improvement of quality and efficiency of health care and containment of cost. Such a payment system has not been researched satisfactorily in full-cycle cancer care. Objective: To examine the association of outcomes and medical expenditures with a bundled-payment pay-for-performance program for breast cancer in Taiwan compared with a fee-for-service (FFS) program...
October 20, 2016: JAMA Oncology
Charat Thongprayoon, Wisit Cheungpasitporn, Narat Srivali, Andrew M Harrison, Wonngarm Kittanamongkolchai, Kevin L Greason, Kianoush B Kashani
BACKGROUND: The aim of this study was to compare the incidence of post-procedural acute kidney injury (AKI) and other renal outcomes in patients undergoing transapical (TA) and transfemoral (TF) approaches for transcatheter aortic valve replacement (TAVR). METHODS: All consecutive adult patients undergoing TAVR for aortic stenosis from 1 January 2008 to 30 June 2014 at a tertiary referral hospital were included. AKI was defined based on Kidney Disease Improving Global Outcomes (KDIGO) criteria...
October 21, 2016: Renal Failure
Shearwood McClelland, Joseph F Baker, Justin S Smith, Breton G Line, Thomas J Errico, Christopher P Ames, R Shay Bess
Parkinson's disease (PD) is a neurodegenerative disorder manifesting over time to result in reduced mobility. The impact of PD on spinal fusion has yet to be addressed on a nationwide level. The Nationwide Inpatient Sample (NIS) from 2001 to 2012 was used for analysis. Admissions with spinal fusion of two or more vertebrae (ICD-9 codes=81.62, 81.63 and 81.64) were included and then stratified based on the presence or absence of PD (ICD-9 code=332.0); patients with cancer (ICD-9 codes=140-239) or trauma (ICD-9 codes=805...
October 17, 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
Maral Ouzounian, Vivek Rao, Cedric Manlhiot, Nachum Abraham, Carolyn David, Christopher M Feindel, Tirone E David
BACKGROUND: Although aortic valve-sparing (AVS) operations are established alternatives to composite valve graft (CVG) procedures for patients with aortic root aneurysms, comparative long-term outcomes are lacking. OBJECTIVES: This study sought to compare the results of patients undergoing AVS procedures with those undergoing CVG operations. METHODS: From 1990 to 2010, a total of 616 patients age <70 years and without aortic stenosis underwent elective aortic root surgery (AVS, n = 253; CVG with a bioprosthesis [bio-CVG], n = 180; CVG with a mechanical prosthesis [m-CVG], n = 183)...
October 25, 2016: Journal of the American College of Cardiology
Atsushi Hata, Hidemi Suzuki, Takahiro Nakajima, Kazuhisa Tanaka, Taiki Fujiwara, Hironobu Wada, Takekazu Iwata, Shigetoshi Yoshida, Ichiro Yoshino
BACKGROUND: Lung carcinoma is often associated with interstitial lung disease (ILD), and the prognosis of lung cancer accompanied by ILD is unfavorable. In this study, cases of patients with primary lung cancer with or without ILD were reviewed to analyze surgical outcome, with special interest in the conformity of clinical and pathologic stages, pathologic findings of pleural invasion, malignant pleurisy first detected at the time of thoracotomy, and survival. METHODS: Retrospective chart review was performed for 1,264 primary lung cancer patients who underwent surgery from 2004 to 2015...
October 17, 2016: Annals of Thoracic Surgery
Chang-Yun Yoon, Jeong Hae Kie, Tae Ik Chang, Ea Wha Kang, Youn Kyung Kee, Hyoungnae Kim, Seohyun Park, Hae-Ryong Yun, Su-Young Jung, Jong Hyun Jhee, Young Eun Kwon, Hyung Jung Oh, Jung Tak Park, Tae-Hyun Yoo, Shin-Wook Kang, Seung Hyeok Han
BACKGROUND: The Oxford classification has been widely used in IgA nephropathy. However, its clinical usefulness of determining immunosuppression is unknown. AIMS: Whether the Oxford classification could predict the development of proteinuria ≥1 g/g Cr and worsening kidney function, as well as the clinical efficacy of corticosteroid treatment according to each histologic variable of the Oxford-MEST. METHODS: We included 377 patients with early-stage IgA nephropathy...
October 21, 2016: Annals of Medicine
Seo Ki Kim, Inhye Park, Nayoon Hur, Jun Ho Lee, Jun-Ho Choe, Jung Han Kim, Jee Soo Kim
BACKGROUND: For the N1b papillary thyroid carcinoma (PTC) patients, modified radical neck dissection (MRND) encompassing levels II - V is generally recommended. However, routine level V dissection is controversial because of the low incidence of metastasis/recurrence in level V and the increased morbidities associated with level V dissection. METHODS: We retrospectively reviewed 646 N1b PTC patients who underwent unilateral MRND between January 1997 and June 2015...
October 20, 2016: Thyroid: Official Journal of the American Thyroid Association
Masayoshi Okumi, Yasuyuki Sato, Kohei Unagami, Toshihito Hirai, Hideki Ishida, Kazunari Tanabe
BACKGROUND: The reasons for improved outcomes associated with preemptive kidney transplantation (PKT) are incompletely understood, and post-transplant complications have been scarcely investigated. METHODS: We evaluated the outcomes of PKT in both unmatched (n = 1060) and propensity score matched cohorts (n = 186) of adults who underwent living kidney transplant between 2000 and 2014. Outcomes were estimated glomerular filtration rate (eGFR), biopsy-proven rejection, cytomegalovirus (CMV) infection, post-transplant diabetes mellitus (PTDM), cardiovascular disease (CVD), graft failure (non-censored for death), and malignancy...
October 19, 2016: Clinical and Experimental Nephrology
Henrik Behrend, Vilijam Zdravkovic, Johannes M Giesinger, Karlmeinrad Giesinger
PURPOSE: To measure joint awareness in patients who have undergone anterior cruciate ligament (ACL) reconstruction and to investigate medium- and long-term results of the procedure. METHODS: All patients who had undergone ACL reconstruction with the same arthroscopic surgical technique at our institution between 2011 and 2014 (medium-term follow-up group (Group I)) or between 2000 and 2005 (long-term follow-up group (Group II)) were considered for inclusion in the study...
October 19, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Faraz Kureshi, Kevin F Kennedy, Philip G Jones, Randal J Thomas, Suzanne V Arnold, Praneet Sharma, Timothy Fendler, Donna M Buchanan, Mohammed Qintar, P Michael Ho, Brahmajee K Nallamothu, Neil B Oldridge, John A Spertus
Importance: Cardiac rehabilitation (CR) improves survival after acute myocardial infarction (AMI), and referral to CR has been introduced as a performance measure of high-quality care. The association of participation in CR with patients' health status (eg, quality of life, symptoms, and functional status) is poorly defined. Objective: To examine the association of participation in CR with health status outcomes after AMI. Design, Setting, and Participants: A retrospective cohort study was conducted of patients enrolled in 2 AMI registries: PREMIER, from January 1, 2003, to June 28, 2004, and TRIUMPH, from April 11, 2005, to December 31, 2008...
October 19, 2016: JAMA Cardiology
Erin R Weeda, Philip S Wells, W Frank Peacock, Gregory J Fermann, Christopher W Baugh, Veronica Ashton, Concetta Crivera, Peter Wildgoose, Jeff R Schein, Craig I Coleman
We sought to compare length-of-stay (LOS), total hospital costs, and readmissions among pulmonary embolism (PE) patients treated with rivaroxaban versus parenterally bridged warfarin. We identified adult PE (primary diagnostic code = 415.1x) patients in the Premier Database (11/2012-9/2015), and included those with ≥1 PE diagnostic test on days 0-2. Rivaroxaban users (allowing ≤2 days of prior parenteral therapy) were 1:1 propensity score matched to patients parenterally bridged to warfarin. LOS, total costs, and readmission for venous thromboembolism (VTE) or major bleeding within the same or subsequent 2 months were compared between cohorts...
October 18, 2016: Internal and Emergency Medicine
Jumpei Kashima, Yusuke Okuma, Maki Miwa, Yukio Hosomi
Brain metastases (BM) is one of the most crucial distant metastases in patients with non-small cell lung cancer (NSCLC) harboring epidermal growth factor receptor (EGFR) mutations. There is no consensus about which EGFR tyrosine kinase inhibitor (TKI) is most effective against BM in such patients. Here, we compared prognoses of patients with EGFR-TKI naïve EGFR-positive BM treated with erlotinib or gefitinib after BM diagnosis. Of 269 patients with NSCLC treated with EGFR-TKIs at a single institution, we reviewed medical records of 205 patients with documented EGFR mutations...
November 2016: Medical Oncology
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