Regression to the mean
Usage
DBP.RTM(
mu = 90,
sigma = 8,
r = 0.76,
n = 1000,
limit = 95,
TrueChange = 0,
show.plot = TRUE,
show.out = FALSE
)Arguments
- mu
The mean DBP at baseline
- sigma
The standard deviation at baseline and at follow-up
- r
The pre-post correlation
- n
sample size
- limit
Limit for hypertension
- TrueChange
True Change from Baseline. Default is zero.
- show.plot
Add plot, default=TRUE
- show.out
print results, default=FALSE
Value
A list with
plot showing equality line and the linear regression slope for all observations
plot showing extreme subjects only with regression to the mean
A list with
summary I - Summary statistics for all observations
summary II - Summary statistics for extreme cases (with hypertension) only
correlation Pre-Post correlation or intraclass correlation
t-test all
t-test extreme
model Coefs from simple linear regression (that is, by "fixing" baseline), equals the correlation coefficient for standardized data
fraction of regression to the mean, RTM, equals (1-rho)
dataI all observations
dataII extreme cases
