Conversely, de Leeuw et al. [ 26] reported a significant increase in the heart rate during and after the PCSNB nerve block procedure compared with baseline values in patients undergoing total hip arthroplasty revision surgery.
Comparisons with the "placebo press" groups were performed using an analysis of covariance procedure, with adjustment for baseline VAS score, gender and age.
Comparisons to the "placebo press" groups were performed using an analysis of covariance procedure, with adjustment for baseline VAS score, sex and age.
The krypton interference was corrected using a blank subtraction procedure with on-peak baselines measured before each sample.
Where any significant difference existed at baseline between groups, ANCOVA procedures will be implemented, with baseline values used as the covariate [ 23].
The primary efficacy endpoint of the trial looked at the reduction of office BP measurements following denervation procedure at 6 months compared with baseline.
In dynamic retinal-vessel analysis, the reliability of the measuring procedure was demonstrated in 9 rats with baseline recordings without provocation (Fig. 10).
In particular, it varies with baseline renal function, with optimal discriminatory performance in subjects with normal pre-procedure renal function [ 19].
A final model was built manually with a backward selection procedure with following covariates included: age at baseline, sex, study group and BMI at baseline, as appropriate.
Using the Cox proportional hazards model, five covariates (baseline triglycerides, fed/fasted status, dose, BMI, and age) were retained in the model based on the stepwise procedure, with hazard ratios for food and baseline triglycerides being much larger than other covariates.
