Purpose of the study: In our study we analyze the quality of chest compression performed by in-hospital staff. 
Material and methods: We enrolled a group of voluntary health personnel. They performed a 2-minutes chest compression on a manikin with skill-guide recording the compression score. 3 groups: low quality group (LQG) < 75%, medium quality group (MQG) 75-90% and high quality group (HQG) > 90%. Data: age, sex, weight, height, smoker, role (physician/nurse/other health profession/non-health profession), type of ward (medical/surgical/critical care/other), sedentary lifestyle and physical limitations. Numerical data shown as mean ± SD, ordinal data as percentage. ANOVA and X-square test used to compare data. P < 0.05.   
Results 93 performances recorded. Mean compression score 84%. 
In HQG nurses represented 62.8% and personnel enrolled in medical and critical care wards 80.3%.
Conclusions 
The quality of chest compression is sufficient. Younger age, male and higher height positively affect while physical limitations  impact negatively. Nurses and personnel employed in medical and critical care area practice a more efficient chest compression.

7 - The quality of chest compression among in-hospital staff: a study on manikin.