medInnovations: 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”

Arguments

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)

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.

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).

References

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

Valente, T. W. (1995). Network models of the diffusion of innovations (2nd ed.). Cresskill N.J.: Hampton Press.