TABLE 3.
Baseline Characteristics of Treated and Untreated Participants in the Final Propensity Score Matched Sample
| Variable | No Smoking Cessation Counseling (N = 646) | Smoking Cessation Counseling (N = 646) | Standardized Difference of the Mean | Variance Ratio |
|---|---|---|---|---|
| Demographic Characteristics | ||||
| Age | 59.1 ± 12.4 | 58.7 ± 12.4 | 0.026 | 0.998 |
| Female | 178 (27.6%) | 175 (27.1%) | 0.010 | 0.989 |
| Presenting Signs and Symptoms | ||||
| Acute pulmonary edema | 31 (4.8%) | 25 (3.9%) | 0.046 | 0.814 |
| Vital Signs on Admission | ||||
| Systolic blood pressure | 147.7 ± 30.5 | 147.8 ± 31.3 | 0.002 | 1.055 |
| Diastolic blood pressure | 85.5 ± 17.7 | 85.7 ± 18.5 | 0.015 | 1.092 |
| Heart rate | 82.1 ± 22.4 | 82.4 ± 22.3 | 0.013 | 0.993 |
| Respiratory rate | 20.8 ± 5.5 | 20.9 ± 5.7 | 0.012 | 1.046 |
| Classic Cardiac Risk Factors | ||||
| Diabetes | 130 (20.1%) | 140 (21.7%) | 0.038 | 1.056 |
| Hyperlipidemia | 216 (33.4%) | 214 (33.1%) | 0.007 | 0.995 |
| Hypertension | 247 (38.2%) | 247 (38.2%) | 0.000 | 1.000 |
| Family history of coronary artery disease | 218 (33.7%) | 235 (36.4%) | 0.055 | 1.035 |
| Comorbid Conditions and Vascular History | ||||
| Cerebrovascular accident/Transient ischemic attack 39 (6.0%) | 46 (7.1%) | 0.044 | 1.166 | |
| Angina | 165 (25.5%) | 166 (25.7%) | 0.004 | 1.004 |
| Cancer | 15 (2.3%) | 13 (2.0%) | 0.021 | 0.869 |
| Dementia | 5 (0.8%) | 8 (1.2%) | 0.047 | 1.593 |
| Previous myocardial infarction | 131 (20.3%) | 131 (20.3%) | 0.000 | 1.000 |
| Asthma | 33 (5.1%) | 35 (5.4%) | 0.014 | 1.057 |
| Depression | 63 (9.8%) | 63 (9.8%) | 0.000 | 1.000 |
| Peptic ulcer disease | 30 (4.6%) | 30 (4.6%) | 0.000 | 1.000 |
| Peripheral vascular disease | 57 (8.8%) | 57 (8.8%) | 0.000 | 1.000 |
| Previous coronary revascularization | 44 (6.8%) | 43 (6.7%) | 0.006 | 0.979 |
| Chronic congestive heart failure | 13 (2.0%) | 14 (2.2%) | 0.011 | 1.075 |
| Laboratory Tests | ||||
| Glucose | 9.0 ± 5.3 | 9.1 ± 5.5 | 0.011 | 1.075 |
| White blood count | 10.9 ±i 3.9 | 10.7 ± 3.6 | 0.038 | 0.863 |
| Hemoglobin | 143.2 ± 16.7 | 143.9 ± 17.6 | 0.041 | 1.117 |
| Sodium | 139.1 ± 3.5 | 139.0 ± 3.3 | 0.025 | 0.920 |
| Potassium | 4.0 ± 0.5 | 4.1 ± 0.5 | 0.004 | 1.151 |
| Creatinine | 93.8 ± 39.6 | 92.1 ± 40.2 | 0.045 | 1.033 |
| Prescriptions for Cardiovascular Medications at Hospital Discharge | ||||
| Statin | 189 (29.3%) | 185 (28.6%) | 0.014 | 0.987 |
| Beta-blocker | 424 (65.6%) | 427 (66.1%) | 0.010 | 0.993 |
| Angiotensin Converting Enzyme (ACE) inhibitor/Angiotensin receptor blockers | 302 (46.7%) | 309 (47.8%) | 0.022 | 1.002 |
| Plavix | 24 (3.7%) | 28 (4.3%) | 0.031 | 1.159 |
| Acetylsalicyclic Acid (ASA) | 476 (73.7%) | 488 (75.5%) | 0.043 | 0.953 |
Note. Continuous variables are presented as means ± standard deviation; dichotomous variables are presented as N (%).