Reusable stainless steel instruments were estimated to have a lifespan of 300 uses, based on a 2012 study of reusable surgical instruments.
Relationships between the instruments were estimated using ordinary least squares (OLS), generalized linear models (GLM), and censored least absolute deviations (CLAD) regression approaches.
The performance of the instrument was estimated using Monte Carlo simulation.
The construct validity of the instrument was estimated by measuring factorial, convergent, and discriminant validity.
Internal consistency reliability of the instrument was estimated by using Cronbach's alpha [ 17].
The detection limit of the instrument was estimated to be 0.75 ng Hg per aliquot used for analysis.
The Pearson correlation between the total QPCQ score and the Satisfaction subscale score of the PESPC instrument was estimated.
Correlations between instruments were strong and all changes were in the same direction and of similar magnitude, indicating that all instruments are estimating the same, or a similar, latent trait.
The detection limit of our instrument is estimated to be around 6 ppm.
