Economic evaluation of short message service intervention for HIV prevention among men who have sex with men in China: a modelling study.

Background: Men who have sex with men (MSM) globally face a high risk of HIV infection. Previous studies indicate that customized short message service (SMS) interventions could reduce high-risk behaviors that associated with HIV transmission. This study aims to evaluate the health and economic impacts of such interventions among MSM in China.

[Study on different onset patterns and perinatal outcomes in severe preeclampsia].

Objective: To explore the different clinical onset patterns in severe preeclampsia.

Methods: A prospective observational study was conducted in 173 cases of severe preeclampsia. They were divided into two groups according to the onset of gestational age of severe preeclampsia, early onset of severe preeclampsia (S-PE) (onset < or = 34 weeks) and late onset of S-PE (onset > 34 weeks).

[Clinical delimitation and expectant management of early onset of severe pre-eclampsia].

Objective: To determine the clinical delimitation and to investigate the difference of maternal and perinatal outcome with expectant management of women with early onset of severe preeclampsia.

Methods: Two hundred and fifty-five cases meeting the criteria of severe pre-eclampsia who underwent expectant management were enrolled in this study. Patients were divided into 4 groups: group A (n = 24) with onset before 28 weeks of gestation, group B (n = 50) with onset during 28 - 31 weeks of gestation, group C (n = 34) with onset during 32 - 33 gestational weeks, and group D (n = 147) with onset >or= 34 weeks of gestation.