CBF: Ciliary Beat Frequency Measurement Using Two Methods.

In R4HCR: R for Health Care Research

Ciliary Beat Frequency Measurement Using Two Methods.

Description

These data are a subset of a larger set of data collected by Low et al and reprinted in Hollander et al. The data correspond to two methods for measuring ciliary activity (ciliary beat frequency (CBF)); 1) nasal brushing and 2) the more invasive but accepted method of endobronchial forceps biopsy. The subjects in the study were all men undergoing bronchoscopies for diagnoses of various lung problems. The CBF values are averages of 10 consecutive measurements on each subject.

Usage

CBF

Format

A data frame with 15 observations on the following 2 variables.

Nasal

CBF (hertz) measured using nasal brushing method.

Biopsy

CBF (hertz) measured using endobronchial forceps biopsy method.

Source

Originally from P. P. Low, C. K. Luk, M. J. Dulfano, and P. J. P. Finch (1984).

References

Hollander, M., Wolfe, D.A. and Chicken, E., 2013. Nonparametric statistical methods. John Wiley & Sons.

Examples

data(CBF, package = "R4HCR")

# Pearson's r
with(CBF,
cor(Nasal, Biopsy)
)

R4HCR documentation built on Sept. 30, 2024, 9:46 a.m.