Table 3:

Descriptive statistics for number of primary care consultations, unplanned hospital admissions, mortality and time of follow-up for each data set

VariableDevelopment data set*
n = 300 000
Validation data sets
2015, 1-yr follow-up
n = 150 000
2011, 1-yr follow-up
n = 150 000
2011, 5-yr follow-up
n = 150 000
Primary care consultations
Consultation rate, per person-year5.925.845.525.68
No. of events in follow-up, mean ± SD5.7 ± 7.55.6 ± 7.15.3 ± 6.424.5 ± 26.5
Range0–1620–2370–1100–493
Zero consultations, % of patients21.921.320.38.7
Unplanned admissions
No. of first events in follow-up19 50910 045887830 075
Rate, per 1000 person-yr69.571.663.151.8
Mortality
No. of deaths in follow-up3106155815057087
Mortality rate, per 1000 person-yr10.710.710.411.0
Follow-up period
Mean, yr/patient0.9680.9670.9674.3
No. (%) of patients with complete follow-up281 150 (93.7)140 353 (93.6)140 325 (93.6)112 586 (75.1)
  • Note: SD = standard deviation.

  • * The development data set was based on data from 2015, with 1-year follow-up.