What to do (and not to do) with time-series cross-section data
… We show in Beck and Katz nd that it is easy to include lagged dependent variables in
expression 1. 5. That is, the data are ordered so that the second observation is the observation on …
expression 1. 5. That is, the data are ordered so that the second observation is the observation on …
[HTML][HTML] A fully magnetically levitated left ventricular assist device
…, A Babu, D Chomsky, JN Katz… - … England Journal of …, 2019 - Mass Medical Soc
Background In two interim analyses of this trial, patients with advanced heart failure who were
treated with a fully magnetically levitated centrifugal-flow left ventricular assist device were …
treated with a fully magnetically levitated centrifugal-flow left ventricular assist device were …
Estimates of the prevalence of arthritis and other rheumatic conditions in the United States: Part II
…, GG Hunder, JM Jordan, JN Katz… - Arthritis & …, 2008 - Wiley Online Library
Objective To provide a single source for the best available estimates of the US prevalence of
and number of individuals affected by osteoarthritis, polymyalgia rheumatica and giant cell …
and number of individuals affected by osteoarthritis, polymyalgia rheumatica and giant cell …
Development of an upper extremity outcome measure: the DASH (disabilities of the arm, shoulder, and head)
This paper describes the development of an evaluative outcome measure for patients with
upper extremity musculoskeletal conditions. The goal is to produce a brief, self‐administered …
upper extremity musculoskeletal conditions. The goal is to produce a brief, self‐administered …
Taking time seriously: Time-series-cross-section analysis with a binary dependent variable
… We thank John Oneal and Bruce Russett for providing their data and Robert Engle, Gary King,
Jonathan Nagler and Glenn Sueyoshi for helpful comments and conversations. A replication …
Jonathan Nagler and Glenn Sueyoshi for helpful comments and conversations. A replication …
Diagnosis and treatment of hip and knee osteoarthritis: a review
JN Katz, KR Arant, RF Loeser - Jama, 2021 - jamanetwork.com
Importance Osteoarthritis (OA) is the most common joint disease, affecting an estimated more
than 240 million people worldwide, including an estimated more than 32 million in the US. …
than 240 million people worldwide, including an estimated more than 32 million in the US. …
A self-administered questionnaire for the assessment of severity of symptoms and functional status in carpal tunnel syndrome.
…, MJ Koris, LH Daltroy, GG Hohl, AH Fossel, JN Katz - JBJS, 1993 - journals.lww.com
We developed a self-administered questionnaire for the assessment of severity of symptoms
and functional status in patients who have carpal tunnel syndrome. The reproducibility, …
and functional status in patients who have carpal tunnel syndrome. The reproducibility, …
Lumbar disc disorders and low-back pain: socioeconomic factors and consequences
JN Katz - JbJs, 2006 - journals.lww.com
Socioeconomic factors are important risk factors for lumbar pain and disability. The total
costs of low-back pain in the United States exceed $100 billion per year. Two-thirds of these …
costs of low-back pain in the United States exceed $100 billion per year. Two-thirds of these …
Development of the QuickDASH: comparison of three item-reduction approaches
Background: The purpose of this study was to develop a short, reliable, and valid measure
of physical function and symptoms related to upper-limb musculoskeletal disorders by …
of physical function and symptoms related to upper-limb musculoskeletal disorders by …
The Self‐Administered Comorbidity Questionnaire: a new method to assess comorbidity for clinical and health services research
Objective To develop the Self‐Administered Comorbidity Questionnaire (SCQ) and assess
its psychometric properties, including the predictive validity of the instrument, as reflected by …
its psychometric properties, including the predictive validity of the instrument, as reflected by …