Perkins NJ - Search Results

1

Effect of Folic Acid and Zinc Supplementation in Men on Semen Quality and Live Birth Among Couples Undergoing Infertility Treatment: A Randomized Clinical Trial.

Schisterman EF, Sjaarda LA, Clemons T, Carrell DT, Perkins NJ, Johnstone E, Lamb D, Chaney K, Van Voorhis BJ, Ryan G, Summers K, Hotaling J, Robins J, Mills JL, Mendola P, Chen Z, DeVilbiss EA, Peterson CM, Mumford SL. Schisterman EF, et al. Among authors: perkins nj. JAMA. 2020 Jan 7;323(1):35-48. doi: 10.1001/jama.2019.18714. JAMA. 2020. PMID: 31910279 Free PMC article. Clinical Trial.

2

Optimal cut-point and its corresponding Youden Index to discriminate individuals using pooled blood samples.

Schisterman EF, Perkins NJ, Liu A, Bondell H. Schisterman EF, et al. Among authors: perkins nj. Epidemiology. 2005 Jan;16(1):73-81. doi: 10.1097/01.ede.0000147512.81966.ba. Epidemiology. 2005. PMID: 15613948

3

The Youden Index and the optimal cut-point corrected for measurement error.

Perkins NJ, Schisterman EF. Perkins NJ, et al. Biom J. 2005 Aug;47(4):428-41. doi: 10.1002/bimj.200410133. Biom J. 2005. PMID: 16161802

4

The inconsistency of "optimal" cutpoints obtained using two criteria based on the receiver operating characteristic curve.

Perkins NJ, Schisterman EF. Perkins NJ, et al. Am J Epidemiol. 2006 Apr 1;163(7):670-5. doi: 10.1093/aje/kwj063. Epub 2006 Jan 12. Am J Epidemiol. 2006. PMID: 16410346 Free PMC article.

5

Receiver operating characteristic curve inference from a sample with a limit of detection.

Perkins NJ, Schisterman EF, Vexler A. Perkins NJ, et al. Am J Epidemiol. 2007 Feb 1;165(3):325-33. doi: 10.1093/aje/kwk011. Epub 2006 Nov 16. Am J Epidemiol. 2007. PMID: 17110640

6

Youden Index and optimal cut-point estimated from observations affected by a lower limit of detection.

Ruopp MD, Perkins NJ, Whitcomb BW, Schisterman EF. Ruopp MD, et al. Among authors: perkins nj. Biom J. 2008 Jun;50(3):419-30. doi: 10.1002/bimj.200710415. Biom J. 2008. PMID: 18435502 Free PMC article.

7

Generalized ROC curve inference for a biomarker subject to a limit of detection and measurement error.

Perkins NJ, Schisterman EF, Vexler A. Perkins NJ, et al. Stat Med. 2009 Jun 15;28(13):1841-60. doi: 10.1002/sim.3575. Stat Med. 2009. PMID: 19340817 Free PMC article.

8

Quantification of collider-stratification bias and the birthweight paradox.

Whitcomb BW, Schisterman EF, Perkins NJ, Platt RW. Whitcomb BW, et al. Among authors: perkins nj. Paediatr Perinat Epidemiol. 2009 Sep;23(5):394-402. doi: 10.1111/j.1365-3016.2009.01053.x. Paediatr Perinat Epidemiol. 2009. PMID: 19689488 Free PMC article.

9

Effect of daily fiber intake on reproductive function: the BioCycle Study.

Gaskins AJ, Mumford SL, Zhang C, Wactawski-Wende J, Hovey KM, Whitcomb BW, Howards PP, Perkins NJ, Yeung E, Schisterman EF; BioCycle Study Group. Gaskins AJ, et al. Among authors: perkins nj. Am J Clin Nutr. 2009 Oct;90(4):1061-9. doi: 10.3945/ajcn.2009.27990. Epub 2009 Aug 19. Am J Clin Nutr. 2009. PMID: 19692496 Free PMC article.

10

Hybrid pooled-unpooled design for cost-efficient measurement of biomarkers.

Schisterman EF, Vexler A, Mumford SL, Perkins NJ. Schisterman EF, et al. Among authors: perkins nj. Stat Med. 2010 Feb 28;29(5):597-613. doi: 10.1002/sim.3823. Stat Med. 2010. PMID: 20049693 Free PMC article.

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