Variable | Unmatched (n = 2565) | Matched (n = 2018) | ||||
---|---|---|---|---|---|---|
Susceptible (n = 1535) | Not-susceptible (n = 1030) | Std. mean difference | Susceptible (n = 1009) | Not-susceptible (n = 1009) | Std. mean difference | |
Demographic characteristics | ||||||
Mean age, years | 42.83 | 44.42 | 0.081 | 43.95 | 44.12 | 0.008 |
Race, mean proportion of patients | ||||||
White | 0.611 | 0.582 | 0.060 | 0.586 | 0.584 | 0.004 |
African American | 0.243 | 0.273 | 0.068 | 0.259 | 0.268 | 0.020 |
Asian | 0.033 | 0.034 | 0.004 | 0.035 | 0.035 | 0 |
Other race | 0.059 | 0.057 | 0.006 | 0.063 | 0.058 | 0.021 |
Unknown race/none/declined to answer | 0.054 | 0.054 | 0.001 | 0.057 | 0.056 | 0.009 |
Ethnicity, mean proportion of patients | ||||||
Hispanic | 0.030 | 0.030 | 0.001 | 0.030 | 0.031 | 0.006 |
Non-Hispanic | 0.872 | 0.876 | 0.012 | 0.879 | 0.873 | 0.018 |
Other ethnicity | 0.002 | 0.007 | 0.073 | 0.001 | 0.007 | 0.095 |
Unknown (none/declined to answer) | 0.096 | 0.087 | 0.031 | 0.090 | 0.089 | 0.003 |
Health insurance, mean proportion of patients | ||||||
Private insurance | 0.632 | 0.585 | 0.095 | 0.589 | 0.595 | 0.012 |
Medicare/Medicaid | 0.143 | 0.177 | 0.091 | 0.160 | 0.170 | 0.029 |
Other insurance | 0.225 | 0.238 | 0.031 | 0.252 | 0.235 | 0.039 |
Charlson comorbidities, mean numbers | ||||||
Charlson Comorbidity Score | 0.053 | 0.064 | 0.032 | 0.053 | 0.054 | 0.003 |
Hemiparesis | 0.001 | 0 | 0.036 | 0 | 0 | 0 |
Renal disease | 0.001 | 0 | 0.036 | 0 | 0 | 0 |
Myocardial infarction | 0 | 0.001 | 0.044 | 0 | 0.001 | 0.045 |
COPD | 0.021 | 0.022 | 0.006 | 0.021 | 0.019 | 0.014 |
Rheumatic disease | 0.005 | 0.007 | 0.021 | 0.006 | 0.007 | 0.012 |
Peptic ulcer | 0.001 | 0 | 0.036 | 0.001 | 0 | 0.045 |
Mild liver disease | 0.003 | 0.004 | 0.022 | 0.001 | 0.004 | 0.060 |
Moderate/severe liver disease | 0 | 0.001 | 0.044 | 0 | 0.001 | 0.045 |
Dementia | 0.006 | 0.009 | 0.034 | 0.008 | 0.005 | 0.037 |
Peripheral vascular disorder | 0.003 | 0.004 | 0.022 | 0.003 | 0.004 | 0.017 |
Cerebrovascular disease | 0.005 | 0.003 | 0.027 | 0.004 | 0.003 | 0.017 |
Congestive heart failure | 0.003 | 0.001 | 0.039 | 0.002 | 0.001 | 0.026 |
Healthcare resource use (180 days pre-index), mean number of events per patient in the 180 days pre-index | ||||||
Inpatient encounters (all cause) | 0.004 | 0.012 | 0.077 | 0.001 | 0.003 | 0.045 |
Outpatient encounters (all cause) | 1.024 | 1.066 | 0.022 | 1.014 | 0.995 | 0.011 |
Outpatient clinic encounters (all cause) | 0.897 | 0.975 | 0.046 | 0.929 | 0.912 | 0.011 |
Outpatient ambulatory surgery encounters (all cause) | 0.01 | 0.014 | 0.026 | 0.012 | 0.009 | 0.028 |
Outpatient other encounters (all cause) | 0.117 | 0.078 | 0.087 | 0.073 | 0.074 | 0.003 |
ED encounters (all cause) | 0.052 | 0.084 | 0.103 | 0.065 | 0.066 | 0.003 |
Drug orders (all cause) | 1.742 | 2.129 | 0.068 | 1.847 | 1.778 | 0.016 |
Any antibiotic use | 0.098 | 0.150 | 0.158 | 0.097 | 0.147 | 0.152 |