[ relationship between early admission in labor and the occurrence of obstetrical complications]

We evaluated the effect of the timing of admission in labor on the occurrence of obstetrical complications. The study involved a comparison between 460 low-risk nulliparous women who were admitted on labor unit in latent phase with 329 parturients admitted in the active phase with singleton pregnancy, intact membranes, and low risk as determined by their physicians according to the protocols of prenatal care. There were more cesarean deliveries in the latent phase than in the active phase [64/5% vs24/3% P < 0/0001] .The main reasons for cesarean delivery in the latent phase and active phase were dystocia and fetal distress. The rate of dystocia in the latent phase was greater than in the active phase. [32/6% vs 24/3% P=0/0048]. The oxytocin dose was greater in the latent phase than in the active phase [1/1 +/- 0/7 vs 0/18 +/- 0/1]. Our results show that more cesarean operations are performed in women admitted during the latent phase of labor

[Prevalence of asthma symptom in Iran: a meta-analysis]

Asthma is the most prevalent chronic disease in the world. To quantify the national prevalence of asthma symptom, we conducted a systematic review and random effects meta-analysis. After internet search for population-based estimates of Asthma prevalence in Iran, 19 papers were selected from 142 articles, dissertations and reports of research projects published between the years 1998-2003. All studies on children performed by ISAAC protocol were found. We entered the data from studies in children to NCSS software. We used funnel plot for publication bias. In the 19 accepted studies on children under the age of 18 years, 61067 children had been checked by the ISAAC protocol. The lowest prevalence of asthma is 2.7% from Kerman and the highest prevalence is 35.4% from Tehran. Overall prevalence of asthma symptoms in children is 13.14%, [95% confidence interval 9.97-16.30], at the national level. Based on this study the prevalence of asthma symptom in Iran is higher than international norms