OBJECTIVE To analyze neonatal mortality determinants using multilevel logistic regression and classic hierarchical models. METHODS Cohort study including 138,407 live births with birth certificates and 1,134 neonatal deaths recorded in 2003, in the state of Rio Grande do Sul, Southern Brazil. The Information System on Live Births and mortality records were linked for gathering information on ...

BACKGROUND This study takes an in depth look at embryonic development, implantation, pregnancy and live birth rates with frozen epididymal and testicular sperm from obstructed (OA) and non-obstructed (NOA) patients. METHODS Paternal effect of sperm source on zygote formation, embryonic cleavage, and genomic activation were examined. Additional outcome parameters monitored were clinical pregna...

Few reports provide pregnancy or birth rates for large groups of infertile couples having a comprehensive range of treatments. This model utilizes published evidence about diagnosis, treatment, the duration of treatment and the proportion of couples receiving treatment. Assisted reproduction technology treatment (ART) utilization was set arbitrarily at three levels: 3, 10 or 50% of the couples ...

OBJECTIVE To compare pregnancy rate after controlled ovarian hyperstimulation and intrauterine insemination (COH-IUI) with no treatment in patients with endometriosis-associated infertility treated with laparoscopy. DESIGN A clinical cohort study. SETTING University-level tertiary care center. PATIENTS 238 women with various stages of endometriosis after laparoscopic treatment. INTERVEN...

Abstract Study question Establishment of prediction model pregnancy rate and live birth in vitro fertilization-embryo transfer Summary answer the calibration degree is good, it a relatively ideal outcome. What known already The clinical has some differences between average probability actual occurrence IVF-ET patients, but design, size, duration statistically significant influencing factors wer...

OBJECTIVE The combination of heparin and aspirin was regarded as the 'standard therapy' for patients with recurrent pregnancy loss (RPL) and positive aPL antibodies to enhance live births, but it largely stems from expert opinion. We performed a meta-analysis of randomized controlled trials (RCTs) to assess whether this combination works better than aspirin alone. METHODS RCTs testing the eff...