Using Eeva combined with morphology to select a single blastocyst for transfer achieved higher live-birth rates compared to using morphology alone: a matched case-control study

2016 ◽  
Author(s):  
Karen Schnauffer
Keyword(s):  
Live Birth ◽  
Case Control Study ◽  
Case Control ◽  
Birth Rates ◽  
Live Birth Rates ◽  
Matched Case ◽  
Matched Case Control Study ◽  
Control Study

scholarly journals Live birth rates after combined adjuvant therapy in IVF–ICSI cycles: a matched case-control study

2015 ◽  
Vol 30 (4) ◽  
pp. 340-348 ◽  
Author(s):  
C. Motteram ◽  
B. Vollenhoven ◽  
N. Hope ◽  
T. Osianlis ◽  
L.J. Rombauts
Keyword(s):  
Adjuvant Therapy ◽  
Live Birth ◽  
Case Control Study ◽  
Case Control ◽  
Birth Rates ◽  
Live Birth Rates ◽  
Matched Case ◽  
Matched Case Control Study ◽  
Control Study

P–666 Validating the hypo-androgenic PCOS-like phenotype (H-PCOS), derived from the “lean” PCOS phenotype at younger ages

2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
S Darmon ◽  
E Molinari ◽  
D F Albertini ◽  
P Patrizio ◽  
D H Barad ◽  
...  
Keyword(s):  
Live Birth ◽  
Case Control Study ◽  
Treatment Resistance ◽  
Study Groups ◽  
Case Control ◽  
Clinical Pregnancy ◽  
Retrospective Case ◽  
Birth Rates ◽  
Live Birth Rates ◽  
Control Study

Abstract Study question Is the resistance to standard infertility treatments of the H-PCOS-like phenotype reversed through reconstitution of androgen levels and can principle diagnostic markers of H-PCOS be validated? Summary answer Pre-supplementation with dehydroepiandrosterone (DHEA) eliminated treatment resistance of H-PCOS in comparison to matched infertile controls, also validating previously reported diagnostic features of this condition. What is known already H-PCOS evolves at older ages from a hyper-androgenic “lean” PCOS phenotype at young ages. Its ontogeny diverts from other PCOS phenotype between 20s and mid–30s by going from being hyper- to being hypo-androgenic due to insufficiency in adrenal androgen production, believed to represent an autoimmune process. In contrast to other PCOS phenotypes, the “lean” PCOS phenotype appears highly treatment resistant to standard fertility treatments. Study design, size, duration Retrospective case control study. Participants/materials, setting, methods We investigated 54 H-PCOS patients with qualifying diagnostic criteria1,2 and 50 matched infertility patients without diagnostic H-PCOS criteria as controls. Both study groups underwent routine in vitro fertilization (IVF) cycles, including androgen pre-supplementation in both groups via dehydroepiandrosterone (DHEA) for women diagnosed as hypo-androgenic. Main outcome measures were clinical pregnancy and live birth rates. 1Gleicher et al., J Sterodi Biochem Mol Biol 2017;167:144–152; 2Gleicher N, et al., Endocrine 2018;59(3):661–676 Main results and the role of chance Study groups were similar in age, number of prior IVF cycles and previous live births. H-PCOS patients in contrast to controls, however, demonstrated previously reported characteristics of H-PCOS diagnosis, including a significantly higher DHEA/DHEAS ratio, significantly higher AMH, confirming higher functional ovarian reserve, significantly lower free testosterone and significantly higher sex hormone binding globulin (SHBG), further confirming lower androgens. Finally, H-PCOS patients also demonstrated significantly increased evidence for immune system hyperactivity. Clinical pregnancy and live birth rates were separately assessed in first IVF cycles and cumulatively. Both analyses demonstrated, even after age-adjustments, absolutely no outcome differences in cycle cancellations, numbers of oocytes retrieved, first and cumulative pregnancy and live birth rates. At least one pregnancy was achieved in 12 women in both groups (22.2% and 24.0%) and at least one live birth in 11 (20.4%) vs. 8 (14.8%), respectively. Limitations, reasons for caution As a retrospective case control study, here presented data must be interpreted with caution. The close match between H-PCOS and control patients and the very clear differentiation in patient characteristics between the two groups, however, support the credibility of this study. Wider implications of the findings: This study demonstrated that androgen reconstitution in H-PCOS patients completely reversed treatment resistance compared to well-matched infertile control patients. It also validated previously defined diagnostic criteria of H-PCOS, hopefully facilitating a timelier diagnosis of a, still, widely overlooked condition in female infertility. Trial registration number NA

Increased rehospitalisation rate and cardiovascular morbidity in inpatients with hyperthyroidism - a matched case-control study

2015 ◽  
Author(s):  
Barbara Torlinska ◽  
James Hodson ◽  
Jayne Franklyn ◽  
Jamie Coleman ◽  
Kristien Boelaert
Keyword(s):  
Case Control Study ◽  
Case Control ◽  
Cardiovascular Morbidity ◽  
Matched Case ◽  
Matched Case Control Study ◽  
Control Study ◽  
Rehospitalisation Rate

Bariatric surgery among older adults: a matched case-control study on 30-day and 5-year mortality and changes in Body Mass Index and HbA1c up to 5-years post-operatively

2019 ◽  
Author(s):  
Sally Abbott ◽  
Madeleine Hawkes ◽  
Jonathon Hazlehurst ◽  
Helen Horton ◽  
Rishi Singhal ◽  
...  
Keyword(s):  
Bariatric Surgery ◽  
Older Adults ◽  
Body Mass Index ◽  
Body Mass ◽  
Case Control Study ◽  
Case Control ◽  
Matched Case ◽  
Matched Case Control Study ◽  
Control Study

ASSOCIATION OF RISK FACTORS OF CEREBRAL PALSY – A MATCHED CASE CONTROL STUDY

2020 ◽  
Vol 7 (2) ◽  
Author(s):  
C. HEMACHITHRA ◽  
N. MEENA ◽  
R. RAMANATHAN ◽  
A. J. W. FELIX
Keyword(s):  
Risk Factors ◽  
Cerebral Palsy ◽  
Case Control Study ◽  
Case Control ◽  
Matched Case ◽  
Matched Case Control Study ◽  
Control Study

Dietary and serum vitamin D and preeclampsia risk in Chinese pregnant women: a matched case–control study

2021 ◽  
pp. 1-26
Author(s):  
Xue-min Huang ◽  
Yan-hua Liu ◽  
Han Zhang ◽  
Yuan Cao ◽  
Wei-feng Dou ◽  
...  
Keyword(s):  
Vitamin D ◽  
Dietary Intake ◽  
Pregnant Women ◽  
Case Control Study ◽  
Serum Levels ◽  
Case Control ◽  
Serum Concentrations ◽  
Matched Case ◽  
Matched Case Control Study ◽  
Control Study

Abstract The effect of vitamin D (VD) on the risk of preeclampsia (PE) is uncertain. Few of previous studies focused on the relationship between dietary VD intake and PE risk. Therefore, we conducted this 1:1 matched case-control study to explore the association of dietary VD intake and serum VD concentrations with PE risk in Chinese pregnant women. A total of 440 pairs of participants were recruited during March 2016 to June 2019. Dietary information was obtained using a 78-item semi-quantitative food frequency questionnaire. Serum concentrations of 25(OH)D2 and 25(OH)D3 were measured by liquid chromatography–tandem mass spectrometry. Multivariate conditional logistic regression was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs). Restricted cubic splines (RCS) were plotted to evaluate the dose-response relationship of dietary VD intake and serum VD concentrations with PE risk. Compared with the lowest quartile, the ORs of the highest quartile were 0.45 (95%CI: 0.29-0.71, Ptrend = 0.001) for VD dietary intake and 0.26 (95%CI: 0.11-0.60, Ptrend = 0.003) for serum levels after adjusting for confounders. In addition, the RCS analysis suggested a reverse J-shaped relationship between dietary VD intake and PE risk (P-nonlinearity = 0.02). A similar association was also found between serum concentrations of total 25(OH)D and PE risk (P-nonlinearity = 0.02). In conclusion, this study provides evidence that higher dietary intake and serum levels of VD are associated with the lower risk of PE in Chinese pregnant women.

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