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Intensive care unit performance evaluation is usually affected by variations in the severity of inpatients' health status. This paper aims, therefore, to standardize two performance measures: intensive care unit survival and length of stay using the Acute Physiology and Chronic Health Evaluation II (APACHE II) severity of illness score.

A records study in three Ain Shams University Hospital intensive care units, from January 1‐December 31, 2003 was carried out to examine illness severity effect using APACHE II, length of stay and survival. Retrospective data were used to model length of stay in days and the survival using the APACHE II score as a predictor. This was followed by a prospective study to monitor the standardized measures in two intensive care units for one year.

APACHE II scores predicted length of stay of those who were discharged and control charts for severity‐adjusted length of stay were drawn up. The APACHE II score predicted survival for those with APACHE II score >16. The model is significant with a specificity of 89.9 percent while sensitivity was 25 percent. Control charts for severity‐adjusted mortality were drawn up to monitor mortality.

Only 60 percent of the files examined in the retrospective part of the study had enough data to calculate APACHE II scores.

Standardized APACHE II severity of illness score can monitor intensive care unit length of stay and mortality.

The paper underlines the need to implement a standardized measurement system to evaluate intensive care patient outcomes.

Tobacco is the most widely used substance in the world that has been linked to several psychological problems. Few studies have assessed the relationship between dual (waterpipe and cigarette) tobacco smoking. This study aims to examine the relationship between dual tobacco use and symptoms of depression amongst its users.

A cross-sectional study using a random sample of school students was conducted to assess youth tobacco smoking in the central region of Jordan. A self-reported questionnaire including biographical information, smoking status and experience of depression symptoms was used with a sample of 9th to 12th-grade students. χ² and regression test were used to analyze the data.

The final sample comprised 576 school students, of whom 60% were males. The age range was between 16 and 18 years (mean = 15.84 years, SD ± 0.97). 30% of the participants were dual tobacco smokers. A significant difference was found between males and females, with males being more likely to be dual tobacco smokers compared to females. Two depressive symptoms (“feeling sad” and “having crying spells”) had a significant likelihood amongst the youth who were dual smokers.

To the best of the authors' knowledge, this is the first study that aims to report the relationship between dual tobacco smoking and depressive symptoms. Prevention programs are crucial for raising awareness of the harmful effects of dual tobacco smoking and smoking cessation amongst the youth