Table 3.

Hospital use over 2-year follow-up period by frailty scale and cohort with differences tested using Kruskal–Wallis

Frailty scaleAmbulatory cohortInpatient cohort
Non-frailFrailP-valueNon-frailFrailP-value
Mean number of emergency department attendances per person (SD)
  Fried1.7 (2.2)2.4 (3.0)0.0603.5 (4.1)1.8 (2.1)0.070
  Rothman1.6 (2.2)2.4 (2.9)0.0072.7 (3.2)1.7 (2.2)0.020
  Rockwood1.5 (2.0)2.5 (2.9)<0.001
  HFRS1.3 (1.8)2.5 (2.8)<0.0012.0 (2.8)2.1 (2.5)0.390
Mean number of non-elective admissions per person (SD)
  Fried1.5 (2.1)2.2 (2.7)0.0202.9 (2.7)1.9 (2.1)0.080
  Rothman1.5 (2.1)2.2 (2.6)<0.0012.5 (2.5)1.8 (2.0)0.080
  Rockwood1.3 (1.9)2.5 (2.6)<0.001
  HFRS1.2 (1.6)2.4 (2.6)<0.0012.0 (2.3)2.2 (2.2)0.320
Mean number of elective admissions per person (SD)
  Fried1.0 (1.8)1.0 (2.0)0.5201.5 (2.2)0.8 (1.4)0.200
  Rothman1.1 (1.9)0.8 (1.7)0.0201.1 (1.8)0.7 (1.2)0.180
  Rockwood1.1 (2.0)0.8 (1.6)0.040
  HFRS1.1 (1.9)0.8 (1.7)0.0200.8 (1.3)1.0 (1.6)0.220
Mean number of outpatient appointments per person (SD)
  Fried11.9 (10.6)12.4 (12.6)0.94010.5 (8.2)5.7 (6.7)0.002
  Rothman12.2 (10.8)11.2 (11.9)0.1108.3 (8.1)4.7 (6.2)<0.001
  Rockwood11.7 (10.4)12.7 (12.5)0.970
  HFRS11.3 (10.1)12.4 (12.4)0.7607.6 (8.6)6.0 (6.5)0.350
  • SD = standard deviation. P<0.05 statistically significant.