Kenneth J Smith

Dr. Kenneth J Smith

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Research Focus & Metrics

Academic Career Length

33Years (1994-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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22 February 2012 in JAMA
Verified
Journal Article
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KSKenneth J Smith
Kenneth J Smith
AWAngela R. Wateska
Angela R. Wateska
MNMary Patricia Nowalk
Mary Patricia Nowalk
MRMahlon Raymund
Mahlon Raymund
JNJ. Pekka Nuorti
J. Pekka Nuorti
RZRichard Zimmerman
Richard Zimmerman
The 23-valent pneumococcal polysaccharide vaccine (PPSV23) has been recommended for prevention of invasive pneumococcal disease (IPD) in adults since 1983.1 Most studies show that PPSV23 provides some protection against IPD, but studies have reached contradictory conclusions about its ability to prevent nonbacteremic pneumococcal pneumonia (NPP),1,2 which causes several hundred thousand illnesses annually in the United States.3

1 June 2012 in The Journal of Clinical Endocrinology & Metabolism
Verified
Journal Article
Open access
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LYLinwah Yip
Linwah Yip
CFCoreen Farris
Coreen Farris
AKAdam S. Kabaker
Adam S. Kabaker
SHSteven P. Hodak
Steven P. Hodak
MNMarina N. Nikiforova
Marina N. Nikiforova
SCSally E. Carty
Sally E. Carty
Introduction: Molecular testing of fine-needle aspiration (FNA) results helps diagnose thyroid cancer, although the additional cost of this adjunct has not been studied. We hypothesized that FNA molecular testing of two indeterminate categories (follicular lesion of undetermined significance and follicular/Hürthle cell neoplasm) can be cost saving. Methods: For a hypothetical group of euthyroid patients with a 1-cm or larger solitary thyroid nodule, a decision-tree model was constructed to compare the estimated costs of initial evaluation according to the current American Thyroid Association guidelines, either with molecular testing (MT) or without [standard of care (StC)]. Model endpoints were either benign FNA results or definitive histological diagnosis. Results: Molecular testing added $104 per patient to the overall cost of nodule evaluation (StC $578 vs. MT $682). In this distributed cost model, MT was associated with a decrease in the number of diagnostic lobectomies (9.7% vs. StC 11.6%), whereas initial total thyroidectomy was more frequent (18.2% vs. StC 16.1%). Although MT use added a diagnostic cost of $5031 to each additional indicated total thyroidectomy ($11,383), the cumulative cost was still less than the comparable cost of performing lobectomy ($7684) followed by completion thyroidectomy ($11,954) in the StC pathway, when indicated by histological results. In sensitivity analysis, savings were demonstrated if molecular testing cost was less than $870. Conclusions: Molecular testing of cytologically indeterminate FNA results is cost saving predominantly because of reduction in two-stage thyroidectomy. Appropriate use of emerging molecular testing techniques may thus help optimize patient care, improve resource use, and avoid unnecessary operation.

15 May 2007 in Clinical Infectious Diseases
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Journal Article
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MRMichael B. Rothberg
Michael B. Rothberg
AVAnunta Virapongse
Anunta Virapongse
KSKenneth J Smith
Kenneth J Smith
Background.A vaccine to prevent herpes zoster was recently approved by the United States Food and Drug Administration. We sought to determine the cos

1 January 2017 in American Journal of Infection Control
Verified
Journal Article
Closed access
JKJaHyun Kang
JaHyun Kang
JOJohn M. O'DOnnell
John M. O'DOnnell
BCBonnie Colaianne
Bonnie Colaianne
NBNicholas Bircher
Nicholas Bircher
DRDianxu Ren
Dianxu Ren
KSKenneth J Smith
Kenneth J Smith

18 February 2015 in BMC Cancer
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Journal Article
Open access
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SASherrie L. Aspinall
Sherrie L. Aspinall
CGChester B Good
Chester B Good
XZXinhua Zhao
Xinhua Zhao
FCFrancesca E Cunningham
Francesca E Cunningham
BHBernadette B Heron
Bernadette B Heron
GCGurkamal Chatta
Gurkamal Chatta
Given the paucity of information on dose intensity, the objective of this study is to describe the use of adjuvant chemotherapy for stage III colon cancer, focusing on relative dose intensity (RDI), overall survival (OS) and disease-free survival (DFS). Retrospective cohort of 367 patients diagnosed with stage III colon cancer in 2003–2008 and treated at 19 VA medical centers. Kaplan-Meier curves summarize 5-year OS and 3-year DFS by chemotherapy regimen and RDI, and multivariable Cox proportional hazards regression was used to model these associations. 5-fluorouracil/leucovorin (FU/LV) was the most commonly initiated regimen in 2003 (94.4%) and 2004 (62.7%); in 2005–2008, a majority of patients (60%-74%) was started on an oxaliplatin-based regimen. Median RDI was 82.3%. Receipt of >70% RDI was associated with better 5-year OS (p < 0.001) and 3-year DFS (P = 0.009) than was receipt of ≤70% RDI, with 5-year OS rates of 66.3% and 50.5%, respectively and 3-year DFS rates of 66.1% and 52.7%, respectively. In the multivariable analysis of 5-year OS, oxaliplatin + 5-FU/LV (versus 5-FU/LV) (HR = 0.55; 95% CI = 0.34-0.91), >70% RDI at the first year (HR = 0.58; 95% CI = 0.37-0.89) and married status (HR = 0.66; 95% CI = 0.45-0.97) were associated with significantly decreased risk of death, while age ≥75 (versus 55–64) (HR = 2.06; 95% CI = 1.25-3.40), Charlson Comorbidity Index (HR = 1.17; 95% CI = 1.06-1.30), T4 tumor status (versus T1/T2) (HR = 5.88; 95% CI = 2.69-12.9), N2 node status (HR = 1.68; 95% CI = 1.12-2.50) and bowel obstruction (HR = 2.32, 95% CI = 1.36-3.95) were associated with significantly increased risk. Similar associations were observed for DFS. Patients with stage III colon cancer who received >70% RDI had improved 5-year OS. The association between RDI and survival needs to be examined in studies of adjuvant chemotherapy for colon cancer outside of the VA.

1 September 2002 in The American Journal of Medicine
Verified
Journal Article
Closed access
KSKenneth J Smith
Kenneth J Smith
MRMark S Roberts
Mark S Roberts