RRLI: Relative Risk and its Likelihood Interval between two groups...

In LBI: Likelihood Based Inference

Relative Risk and its Likelihood Interval between two groups without strata

Description

Relative risk and its likelihood interval between two groups without stratification

Usage

  RRLI(y1, n1, y2, n2, conf.level=0.95, k, eps=1e-8)

Arguments

y1	positive event count of test (the first) group
n1	total count of the test (the first) group. Maximum allowable value is 1e8.
y2	positive event count of control (the second) group
n2	total count of control (the second) group. Maximum allowable value is 1e8.
conf.level	approximate confidence level to calculate k when k is missing.
k	1/k likelihood interval will be provided
eps	absolute value less than eps is regarded as negligible

Details

It calculates relative risk and its likelihood interval between the two groups. The likelihood interval is asymmetric, and there is no standard error in the output. This does not support stratification.

Value

There is no standard error.

p1	proportion from the first group, y1/n1
p2	proportion from the second group, y2/n2
RR	relative risk, p1/p2
lower	lower likelihood limit of RR
upper	upper likelihood limit of RR

Author(s)

Kyun-Seop Bae [e-mail]

Examples

  RRLI(7, 10, 3, 10)
  RRLI(3, 10, 7, 10)

LBI documentation built on Oct. 17, 2024, 9:06 a.m.