Table 2.
Characteristics associated with admissions of nonsmokers who allow smoking in their home or car as compared to those who do not.
| Characteristic | No smoking in home/car | Smoking in home/car | Multivariable logistic regressiona |
| Adult admissions | N (row %) | N (row %) | OR (95% CI) |
| Total | 25,594 (97.5) | 648 (2.5) | |
| Sociodemographic characteristics | |||
| Gender | |||
| Male | 11,767 (97.1) | 355 (2.9) | REF |
| Female | 13,827 (97.9) | 293 (2.1) | 0.78 (0.66–0.93) |
| Age | |||
| 18–44 years | 6261 (97.6) | 155 (2.4) | REF |
| 45–64 years | 7916 (96.9) | 251 (3.1) | 1.08 (0.83–1.40) |
| 65 and older | 11,417 (97.9) | 242 (2.1) | 0.66 (0.48–0.92) |
| Race/ethnicity | |||
| Non-White | 4952 (97.7) | 116 (2.3) | REF |
| White | 20,642 (97.5) | 532 (2.5) | 1.23 (0.98–1.56) |
| Marital status | |||
| Married | 14,283 (97.8) | 319 (2.2) | REF |
| Divorced | 4608 (97.7) | 108 (2.3) | 1.04 (0.81–1.33) |
| Single | 6000 (96.7) | 203 (3.3) | 1.28 (1.04–1.59) |
| Other marital | 723 (97.1) | 22 (2.9) | 1.30 (0.83–2.05) |
| Insurance status | |||
| Commercial | 12,854 (97.7) | 301 (2.3) | REF |
| Medicare | 10,659 (97.6) | 264 (2.4) | 1.24 (0.97–1.58) |
| Medicaid | 1603 (96.4) | 60 (3.6) | 1.62 (1.13–2.31) |
| Self-pay/uninsured | 459 (95.2) | 23 (4.8) | 2.14 (1.36–3.37) |
| Nursing unit | |||
| Psychiatry | 291 (91.8) | 26 (8.2) | REF |
| Medicine | 3871 (96.8) | 128 (3.2) | 0.83 (0.44–1.58) |
| Surgery | 7515 (97.6) | 186 (2.4) | 0.67 (0.35–1.29) |
| Cardiology | 2607 (97.6) | 63 (2.4) | 0.63 (0.32–1.26) |
| Neurology | 2080 (97.5) | 54 (2.5) | 0.65 (0.33–1.30) |
| Oncology | 1520 (99.2) | 12 (0.8) | 0.21 (0.08–0.53) |
| Obstetrics | 1791 (99.1) | 16 (0.9) | 0.25 (0.11–0.57) |
| Pediatrics | 867 (98.0) | 18 (2.0) | 0.53 (0.23–1.18) |
| Intensive care | 2547 (97.6) | 83 (3.2) | 0.84 (0.43–1.66) |
| Other floors | 2618 (80.7) | 174 (5.4) | 0.64 (0.33–1.26) |
| Primary discharge diagnosisb | |||
| Coronary heart disease | 778 (97.0) | 24 (3.0) | 1.21 (0.78–1.86) |
| COPD | 202 (95.7) | 9 (4.3) | 1.38 (0.66–2.87) |
| Asthma | 68 (93.2) | 5 (6.9) | 2.29 (0.86–6.09) |
| Stroke | 579 (96.8) | 19 (3.2) | 1.28 (0.74–2.22) |
| Cancer | 2897 (97.9) | 61 (2.1) | 0.91 (0.69–1.20) |
| Psychiatric diagnoses | 456 (92.3) | 38 (7.7) | 1.99 (1.15–3.42) |
| Other diagnoses | 20,614 (97.7) | 492 (2.3) | REF |
| Characteristic | No smoking in home/car | Smoking in home/car | Multivariable logistic regressiona |
| Pediatric admissions | N (row %) | N (row %) | OR (95% CI) |
| Total | 1139 (96.2) | 45 (3.8) | |
| Sociodemographic characteristics | |||
| Gender | |||
| Male | 619 (97.2) | 18 (2.8) | REF |
| Female | 520 (95.1) | 27 (4.9) | 1.85 (1.00–3.42) |
| Age | |||
| 5 years and older | 838 (96.1) | 34 (3.9) | REF |
| Under 5 years | 301 (96.5) | 11 (3.5) | 0.88 (0.42–1.86) |
| Race/ethnicity | |||
| Non-White | 440 (96.7) | 15 (3.3) | REF |
| White | 699 (95.9) | 30 (4.1) | 1.73 (0.83–3.57) |
| Insurance status | |||
| Commercial | 903 (97.2) | 26 (2.8) | REF |
| Medicaid | 207 (92.4) | 17 (7.6) | 3.06 (1.57–5.95) |
| Self-pay/uninsured | 29 (93.6) | 2 (6.5) | 2.35 (0.55–10.05) |
| Primary discharge diagnosisb | |||
| Asthma | 51 (87.9) | 7 (12.1) | 4.01 (1.62–9.92) |
Abbreviations: OR — odds ratio, CI — confidence interval, REF — reference group, and COPD — chronic obstructive pulmonary disease.
a
Adjusted for all covariates listed and using generalized estimating equations to account for clustering of patients with readmissions.
b
Discharge ICD9: cancer (140–209.36, 209.70–209.75, 230–234); psychiatric diagnosis (290–319); coronary heart disease (410–414); stroke (431.14–431.19, 433, 434, 435, 436); COPD (490–492, 494, 496); and asthma (493).