4.3 Poisson Regression

If the response is integer, poisson regression will be run (or specified with type = 'poisson').

pembrolizumab$Counts <- rpois(nrow(pembrolizumab),lambda = 3)
rm_uvsum(data=pembrolizumab, response='Counts',covs=c('age','cohort'))

	RR(95%CI)	p-value	N
age	1.00 (0.99, 1.01)	0.49	94
cohort			94
A	Reference		16
B	0.85 (0.55, 1.31)	0.45	18
C	1.23 (0.83, 1.84)	0.31	18
D	0.89 (0.55, 1.43)	0.63	12
E	0.91 (0.63, 1.35)	0.64	30

offset terms can be specified as well, but must correspond to a variable in the data set

pembrolizumab$length_followup <- rnorm(nrow(pembrolizumab),mean = 72,sd=3)
pembrolizumab$log_length_followup <- log(pembrolizumab$length_followup)
rm_uvsum(data=pembrolizumab, response='Counts',covs=c('age','cohort'),
         offset = "log_length_followup")

	RR(95%CI)	p-value	N
age	1.00 (0.99, 1.01)	0.47	94
cohort			94
A	Reference		16
B	0.85 (0.55, 1.32)	0.47	18
C	1.26 (0.85, 1.88)	0.26	18
D	0.90 (0.55, 1.44)	0.67	12
E	0.93 (0.64, 1.37)	0.70	30