Table 1:

Patient characteristics before and after the implementation of outpatient telemedicine billing codes

CharacteristicNo. (%) of patients*Std. diff.
Apr. 1, 2015, to Mar. 31, 2020
n = 40 098
Apr. 1, 2020, to Mar. 31, 2021
n = 7503
Age, yr, median (IQR)73 (62–82)73 (62–81)0.024
Sex, female19 786 (49.3)3682 (49.1)0.005
Neighbourhood income quintile
 1 (lowest)8583 (21.4)1465 (19.5)0.047
 28479 (21.1)1540 (20.5)0.015
 38035 (20.0)1506 (20.1)0.001
 47334 (18.3)1436 (19.1)0.022
 5 (highest)7536 (18.8)1532 (20.4)0.041
 Missing131 (0.3)24 (0.3)0.001
Residence
 Large urban (population > 100 000)29 832 (74.4)5485 (73.1)0.029
 Medium urban (population 10 000–100 000)4512 (11.3)848 (11.3)0.002
 Small town (population < 10 000)5754 (14.3)1170 (15.6)0.035
Most responsible diagnosis
 Ischemic stroke10 035 (25.0)1871 (24.9)0.002
 Transient ischemic attack30 063 (75.0)5632 (75.1)0.002
ED hospital type
 Comprehensive stroke centre8041 (20.1)1758 (23.4)0.082
 Primary stroke centre7002 (17.5)1458 (19.4)0.051
 Nondesignated stroke centre25 055 (62.5)4287 (57.1)0.109
Hypertension28 239 (70.4)4995 (66.6)0.083
Diabetes12 458 (31.1)2367 (31.5)0.010
Atrial fibrillation7015 (17.5)1203 (16.0)0.039
Dyslipidemia16 028 (40.0)2880 (38.4)0.033
History of stroke4202 (10.5)715 (9.5)0.032
Coronary artery disease5915 (14.8)984 (13.1)0.047
Peripheral artery disease1374 (3.4)194 (2.6)0.049
Baseline medication use
 Antihypertensive20 652 (51.5)3827 (51.0)0.010
 Antihyperlipidemic17 320 (43.2)3388 (45.2)0.039
 Antihyperglycemic5737 (14.3)1146 (15.3)0.027
  • Note: ED = emergency department, IQR = interquartile range.

  • * Unless stated otherwise.

  • Std. diff.: standardized difference, where value > 0.1 indicates a potentially meaningful difference.