Contribution plots for Statistical Process Control: Analysis of the smearing-out effect

2013 ◽  
Author(s):  
Pieter Van den Kerkhof ◽  
Jef Vanlaer ◽  
Geert Gins ◽  
Jan F.M. Van Impe
Keyword(s):  
Process Control ◽  
Statistical Process Control ◽  
Control Analysis ◽  
Statistical Process

scholarly journals EP-2106 Statistical process control analysis of pretreatment VMAT QA for different anatomical sites

2019 ◽  
Vol 133 ◽  
pp. S1165
Author(s):  
H. Omar Ghafour ◽  
S. Russo ◽  
M. Esposito ◽  
S. Pini ◽  
A. Ghirelli ◽  
...  
Keyword(s):  
Process Control ◽  
Statistical Process Control ◽  
Control Analysis ◽  
Statistical Process

Transition to Routine Premedication for Nonemergent Intubations in a Level IV Neonatal Intensive Care Unit

2017 ◽  
Vol 35 (04) ◽  
pp. 336-344 ◽  
Author(s):  
Roschanak Mossabeb ◽  
Ogechukwu Menkiti ◽  
Megan Young ◽  
Vidhy Bains ◽  
David Cooperberg ◽  
...  
Keyword(s):  
Intensive Care Unit ◽  
Intensive Care ◽  
Process Control ◽  
Neonatal Intensive Care Unit ◽  
Statistical Process Control ◽  
Neonatal Intensive Care ◽  
Control Analysis ◽  
Statistical Process ◽  
Pain Scores ◽  
The Mean

Objective This study aims to test whether implementing a guideline for nonemergent intubation improves the rate of premedication for nonemergent intubations in an academic level IV neonatal intensive care unit (NICU). We further sought to test the hypothesis that neonates who receive premedication for a nonemergent intubation have decreased pain scores at the time of intubation, fewer intubation attempts, and no associated adverse events. Study Design This was a prospective observational study with ongoing audit and feedback as well as statistical process control analysis. Data collection began on October 1, 2014. Clinical guideline implementation began in October 2015. A percent “P”-chart spanning seven-quarters was constructed with statistical process control analysis plotting premedication rates over time. Student's t-tests or Wilcoxon rank-sum tests were used for secondary outcomes. Results The mean number of nonemergent intubations given premedications increased from 34 to 82%. The mean pain score was lower when premedications were given: 0.34 (95% confidence interval [CI]: 0.10–0.58) versus 2.8 (95% CI: 1.9–3.6) (p < 0.001). The number of intubation attempts did not differ with premedications. Conclusion Adopting a guideline with supporting educational initiatives to standardize premedication before nonemergent intubations increased this practice. This regimen lowered clinical pain scores with no difference in the number of intubation attempts.

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