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Effect of Mask Mandates on the Intraocular Pressure Measured via Goldmann Applanation Tonometry

Choi WS, Lee CH, Lee CE, Seo S, Lee KW

Purpose: The corona virus disease-19 (COVID-19) pandemic has resulted in mandatory masking of patients and physicians during outpatient visits. This study evaluated the changes in intraocular pressure (IOP) according to...
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Gender-Related Differences in Reliability of Thorax, Lumbar, and Pelvis Kinematics During Gait in Patients With Non-specific Chronic Low Back Pain

Bagheri R, Ebrahimi Takamjani I, Dadgoo M, Ahmadi A, Sarrafzadeh J, Pourahmadi MR, Jafarpisheh AS

OBJECTIVE: To evaluate test-retest reliability of trunk kinematics relative to the pelvis during gait in two groups (males and females) of patients with non-specific chronic low back pain (NCLBP) using...
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Assessing measurement error in surveys using latent class analysis: application to self-reported illicit drug use in data from the Iranian Mental Health Survey

Khalagi K, Mansournia MA, Rahimi-Movaghar A, Nourijelyani K, Amin-Esmaeili M, Hajebi A, Sharifi V, Radgoodarzi R, Hefazi M, Motevalian A

Latent class analysis (LCA) is a method of assessing and correcting measurement error in surveys. The local independence assumption in LCA assumes that indicators are independent from each other condition...
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Statistical Issues in Genomic Cohort Studies

Park S

When conducting large-scale cohort studies, numerous statistical issues arise from the range of study design, data collection, data analysis and interpretation. In genomic cohort studies, these statistical problems become more...
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Errors of Rectal Pressure Measurement in Urodynamic Study of Spinal Cord Injured Patients

Seo JH, Lee RJ, Park SH, Jeong YB, Song CG

  • KMID: 2324371
  • J Korean Acad Rehabil Med.
  • 2006 Dec;30(6):571-574.
OBJECTIVE: The intrarectal pressure can make error during urodynamic study and can decrease the accuracy of detrusor pressures. The purpose of this study was to investigate the incidence and cause...
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Significance of the Position of the Craniofacial Computed Tomographic Scanning

Kim YO, Kim YS, Yoo SK, Lee HY, Kim KD, Park BY

  • KMID: 2322351
  • J Korean Soc Plast Reconstr Surg.
  • 2004 Jul;31(4):439-445.
The computer imaging process is becoming a popular procedure in the research of the craniofacial skeleton. In acquisition of the digital data of computer tomography (CT), the position of the...
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A study on the error of tooth size measurements

Sim EJ, Hwang HS, Moon JD

  • KMID: 1923854
  • Korean J Orthod.
  • 1999 Aug;29(4):491-502.
Precise and accurate measuring of tooth size is essential procedure in orthodontic diagnosis. The purpose of this study was to evaluate the reproducibility and accuracy of tooth size measurements with...
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Measurement Errors on Normotensive Subjects in Screening Test

Bae JM, Kim DS, Kim J, Ahn YO

  • KMID: 2304015
  • Korean J Epidemiol.
  • 1999 Jun;21(1):1-7.
BACKGROUND: Blood pressure measurements with a mercury sphygmomanometer serve as the screening test to establish the clinical diagnosis of primary hypertension. But one of the problems of hypertension screening is...
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Factors Affecting Measurement Error of Vertebral Axial Rotation and Reduction of Measurement Error through Training

Lee CS, Chung SS, Guk S, Chang DK, Kim SE

  • KMID: 2189539
  • J Korean Orthop Assoc.
  • 1999 Feb;34(1):89-94.
PURPOSE: To identify the changes of bony landmarks with rotation and to compare the reliability and accuracy of Perdriolle's method before and after training on the exact bony landmarks. MATERIALS...
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A study on the errors in the cephalometric measurements

Na KC, Yoon YJ, Kim KW

  • KMID: 1923872
  • Korean J Orthod.
  • 1998 Feb;28(1):75-83.
This study was done to recognize the importance of errors in measurements of cephalometric radiograph and to find the anatomical structures those need special care to select as a reference...
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