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Table 4 Range of attribute estimates, random parameters model

From: Location, location, location: a discrete choice experiment to inform COVID-19 vaccination programme delivery in the UK

  Range of individual-specific coefficients
Attributes Levels 1st Quartile 3rd Quartile Inter-quartile range
Alternative specific constant 1.107 1.663 0.556
Mode of delivery Local vaccination centre Reference category
Nearby GP surgery (PCN) 0.085 0.126 0.041
Nearby pharmacy −0.510 − 0.002 0.508
Drive-thru −0.533 −0.125 0.408
Mobile /pop-up −0.070 0.076 0.146
Appointment time Monday to Friday, 9 am-5 pm Reference category
Monday to Friday, after hours −0.301 −0.168 0.133
Weekends −0.073 −0.041 0.032
Proximity from one’s home Less than 15 min Reference category
Between 15 and 30 min 0.026 0.283 0.257
Between 30 and 45 min − 0.421 − 0.395 0.026
SMS invitation sender NHS Reference category
Your GP −0.243 0.113 0.356
Best friend −0.775 −0.455 0.320
  1. Distribution statistics of individual-specific coefficients: first quartile, third quartile and inter-quartile range