R: Medical Innovation

medInnovations {netdiffuseR}

R Documentation

Medical Innovation

Description

From Valente (1995) “Coleman, Katz and Menzel from Columbia University's Bureau of Applied Research studied the adoption of tetracycline by physiciams in four Illinois communities in 1954.[...] Tetracycline was a powerful and useful antibiotic just introduced in the mid-1950s”

Format

A data frame with 125 rows and 59 columns:

city: city id
id: sequential respondent id
detail: detail man
meet: meetings, lectures, hospitals
coll: colleagues
attend: attend professional meets
proage: professional age
length: lenght of reside in community
here: only practice here
science: science versus patients
position: position in home base
journ2: journal subscriptions
paadico: Percent alter adoption date imp
ado: adoption month 1 to 18
thresh: threshold
ctl: corrected tl tl-exp level
catbak: category 1-init 2-marg 3-low tl
sourinfo: source of information
origid: original respondent id
adopt: adoption date 1= 11/53
recon: reconstructed med innov
date: date became aware
info: information source
most: most important info source
journ: journals
drug: drug houses
net1_1: advisor nomination1
net1_2: advisor nomination2
net1_3: advisor nomination3
net2_1: discuss nomination1
net2_2: discuss nomination2
net2_3: discuss nomination3
net3_1: friends nomination1
net3_2: friends nomination2
net3_3: friends nomination3
nojourn: number of pro journals receive
free: free time companions
social: med discussions during social
club: club membership
friends: friends are doctors
young: young patients
nonpoor: nonpoverty patients
office: office visits
house: house calls
tend: tendency to prescribe drugs
reltend: relative tendency to prescribe
perc: perceived drug competition
proximty: physical proximity to other doc
home: home base hospital affiliation
special: specialty
belief: belief in science
proage2: profesional age 2
presc: prescription prone
detail2: contact with detail man
dichot: dichotomous personal preference
expect: adoption month expected
recall: recalls adopting
commun: Number of community
toa: Time of Adoption
study: Number of study in Valente (1995)

Details

The collected dataset has 125 respondents (doctors), and spans 17 months of data collected in 1955. Time of adoption of non-adopters has been set to month 18 (see the manual entry titled Difussion Network Datasets).

Source

The Medical Innovation data were stored in file cabinets in a basement building at Columbia University. Ron Burt (1987) acquired an NSF grant to develop network diffusion models and retrieve the original surveys and enter them into a database. He distributed copies of the data on diskette and sent one to me, Tom Valente, and I imported onto a PC environment.

References

Coleman, J., Katz, E., & Menzel, H. (1966). Medical innovation: A diffusion study (2nd ed.). New York: Bobbs-Merrill