Skip to main content
. 2015 Jun 25;15:245. doi: 10.1186/s12913-015-0925-x

Table 2.

Clinical characteristics of propensity score matched cohorts

Characteristic Patients with WA eligibility Patients with STD eligibility Patients with WA and STD eligibility
With CVERP Without CVERP Std Diff (%) With CVERP Without CVERP Std Diff (%) With CVERP Without CVERP Std Diff (%)
N = 5,808 N = 5,808 N = 21,006 N = 21,006 N = 3,362 N = 3,362
n/mean %/SD n/mean %/SD n/mean %/SD n/mean %/SD n/mean %/SD n/mean %/SD
1-year Pre-Index Period Deyo Charlson Comorbidity Index (mean, SD) 0.6 1.1 0.6 1.3 0.004 0.7 1.2 0.7 1.4 0.043 0.7 1.1 0.7 1.4 0.01
1-year Pre-Index Period Comorbid Conditions (n, %)
Diabetes 1,108 19.1 989 17.0 5.3 4,172 19.9 4,035 19.2 1.6 690 20.5 689 20.5 0.1
Hypertension 2,207 38.0 2,223 38.3 0.6 8,153 38.8 7,980 38.0 1.7 1,345 40.0 1,351 40.2 0.4
Stable angina 343 5.9 313 5.4 2.2 1,152 5.5 1,098 5.2 1.1 173 5.1 154 4.6 2.6
Cancer 201 3.5 361 6.2 12.9 742 3.5 1,359 6.5 13.5 118 3.5 206 6.1 12.2
Respiratory disease 1,906 32.8 1,923 33.1 0.6 7,015 33.4 7,133 34.0 1.2 1,098 32.7 1,102 32.8 0.3
Renal disease 162 2.8 161 2.8 0.1 675 3.2 598 2.8 2.1 100 3.0 109 3.2 1.5
Liver disease 99 1.7 106 1.8 0.9 379 1.8 466 2.2 3.0 63 1.9 54 1.6 2.0
Peripheral vascular disease 159 2.7 87 1.5 8.6 733 3.5 551 2.6 5.0 93 2.8 47 1.4 9.6
Psychiatric disorders 641 11.0 580 10.0 3.4 2,735 13.0 2,850 13.6 1.6 405 12.0 392 11.7 1.2
Abdominal aortic aneurysm 20 0.3 17 0.3 0.9 109 0.5 96 0.5 0.9 14 0.4 14 0.4 0.0
Metabolic syndrome 21 0.4 20 0.3 0.3 74 0.4 119 0.6 3.2 10 0.3 17 0.5 3.3
Obesity of overweight 107 1.8 114 2.0 0.9 503 2.4 509 2.4 0.2 77 2.3 86 2.6 1.7
Arrhythmias 414 7.1 430 7.4 1.1 1,567 7.5 1,526 7.3 0.7 242 7.2 232 6.9 1.2
Baseline Hours Lost
Monthly hours lost due to WA/STD/WA and STD during the 1-year Pre-Index Period (mean, SD) 20.5 18.9 20.5 21.7 0.002 4.7 20.0 5.4 23.0 0.03 23.3 19.4 23.2 21.3 0.01

CVERP: cardiovascular events and related clinical procedures; SD: standard deviation; STD: short-term disability; Std Diff: standardized difference; WA: workplace absenteeism