Combined first-trimester Down syndrome screening in HIV-infected women.

Objective: To determine if human immunodeficiency virus (HIV) infection or antiretroviral therapy interferes with maternal levels of free human β-chorionic gonadotrophin (hCGβ) and pregnancy-associated plasma protein-A (PAPP-A) and whether any such influence alters first-trimester Down syndrome (DS) screening in HIV-infected women.

Study Design: We performed a multicenter 1:2 matched case-control study comparing 84 HIV-infected women with singleton pregnancies with controls randomly selected among uninfected women, delivered and screened in the same center and matched for maternal age, geographical origin and fetal sex.

Results: Groups did not differ significantly in screening results, although case women showed a slightly lower median free hCGβ multiple of the median (MoM) (1.

French validation of a new version of the driver behavior questionnaire (DBQ) for drivers of all ages and level of experiences.

The purpose of this study was to validate a new version of the Driver Behavior Questionnaire (DBQ) on a sample of French drivers in order to gain a better understanding of different driver behaviors, by differentiating two types of violations (aggressive and ordinary), three types of errors (dangerous, inattention and inexperience) and by taking positive behaviors into account. 525 drivers (205 men and 320 women), between 18 and 79 years of age, filled in a questionnaire on line including the 41 items in the new version of the DBQ and information relative to their mobility and their accident history. Exploratory factor analysis confirmed a six-factor structure: "dangerous errors", "inattention errors", "inexperience errors", "ordinary violations", "aggressive violations" and "positive behaviors".

Social representations, correspondence factor analysis and characterization questionnaire: a methodological contribution.

The characterization questionnaire is inspired by Q-sort methodologies (i.e. qualitative sorting).

Stability study of cloxacillin in an oily suspension, by high performance liquid chromatography.

A high performance liquid chromatography method, using spectrophotometric detection (254 nm) has been developed for the analysis of cloxacillin in an oily suspension. Analysis was performed by isocratic elution with 0.02M potassium dihydrogen phosphate solution, methanol, 50/50 (V/V).