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Scholar Results 1 - 10 of about 101 related to Pennefather: Bias due to incomplete follow up in a cohort study. (0.09 sec) 

Bias due to incomplete follow up in a cohort study

- nih.gov [PDF]  - Free from Publisher
PM Pennefather, W Tin, MP Clarke, J Dutton, S … - British Journal of Ophthalmology, 1999 - bjo.bmj.com
RESULTS 558 children (98.8% of study group) were examined, of whom 505 were in
group 1, 20 in group 2, and 33 in group 3. The groups which were more difficult
to study (groups 2 and 3) showed a significantly higher prevalence of ...
Cited by 12 - Related articles - BL Direct - All 7 versions

Visual acuity, contrast sensitivity, peripheral vision and refraction in low birthweight …


S Lindqvist, T Vik, MS Indredavik, AM Brubakk - Acta Ophthalmologica Scandinavica, 2007 - interscience.wiley.com
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display style sheets. In this case, although the visual presentation will be
degraded, the site should continue to be functional. We recommend using the ...
Cited by 6 - Related articles - BL Direct - All 3 versions

Ocular abnormalities in a cohort of children born prematurely: effects of selection bias and …

- nih.gov [PDF] 
SD Nishioka - The British Journal of Ophthalmology, 1999 - pubmedcentral.nih.gov
EDITOR,—The authors have commented on the use of FK-506 as an
immunosuppressive agent in patients with allo-limbal transplanta- tion. Our
experience with tacrolimus (FK- 506, Prograf, Fujisawa Ltd, London) has ...
Related articles - All 6 versions

[PDF] Estudios de cohorte


AM JUÁREZ - Perinatol Reprod Hum, 2009 - medigraphic.com
Entre los estudios observacionales, aquéllos con mayor fortaleza son los
estudios de cohorte. Éstos comprenden diferentes estrategias, en las cuales un
grupo de sujetos son evaluados en repetidas ocasiones, a lo largo de un ...
Related articles - All 3 versions

Missing Data: A Special Challenge in Aging Research


SE Hardy, H Allore, SA Studenski - Journal of the American Geriatrics Society, 2009 - pubmedcentral.nih.gov
Evidence about care of older adults informs practice but is influenced by
special methodological challenges. Missing data, ranging from lack of individual
items in questionnaires to complete loss to follow up, affect the quality ...
Related articles - All 4 versions

Children followed with difficulty: How do they differ?


C Callanan, LW Doyle, AL Rickards, EA Kelly … - Journal of paediatrics and child health, 2001 - interscience.wiley.com
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display style sheets. In this case, although the visual presentation will be
degraded, the site should continue to be functional. We recommend using the ...
Cited by 28 - Related articles - BL Direct - All 4 versions

Factors predictive of follow-up clinic attendance and developmental outcome in a regional …


MK Campbell, E Halinda, MJ Carlyle, AM Fox … - American journal of epidemiology, 1993 - Oxford Univ Press
This population-based, retrospective cohort study of very low birth weight
infants was undertaken to 1) identify factors associated with nonattendance for
follow-up, 2) esti- mate the prevalence of cerebral palsy at age >18 ...
Cited by 27 - Related articles - BL Direct - All 3 versions

[CITATION] A 7–10-year follow-up of children screened 1982–84 for ROP.(1) Visual function, slit-lamp …


HC Fledelius - Acta Ophthalmol Scand, 1996
Cited by 1 - Related articles

A comparison of findings on parents' and teachers' questionnaires, and detailed …

- bmj.com
AR O'Connor, TJ Stephenson, A Johnson, SD … - British Medical Journal, 2004 - adc.bmj.com
Results: A total of 90.9% of cases showed agreement between the question on
distance vision and clinical assessment, and agreement for the near vision
question was 83%. However, the correlation on an individual basis was only ...
Cited by 1 - Related articles - BL Direct - All 9 versions

Depth perception of elementary school students with qualitatively evidenced locomotor …


EK Skordilis, A Douka, I Spartali, D Koutsouki - Perceptual and motor skills, 2004 - ncbi.nlm.nih.gov
The purpose of the study was to examine differences in depth perception of
students classified according to their gross locomotor skills. The seven
qualitative gross locomotor tasks of Ulrich's Test of Gross and Motor ...
Cited by 2 - Related articles - BL Direct - All 2 versions


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