Table 1.
Characteristics associated with screening hospital patients for SHS exposure.
| Characteristic | “Yes” or “No” response to SHS screening | “Unknown” response to SHS screening | Multivariable logistic regressiona |
| Adult admissions | N (row %) | N (row %) | OR (95% CI) |
| Total | 31,060 (90.6) | 3235 (9.4) | |
| Smoking status | |||
| Non-smoker | 26,242 (92.2) | 2225 (7.8) | REF |
| Smoker | 4818 (82.7) | 1010 (17.3) | 0.48 (0.44–0.53) |
| Sociodemographic characteristics | |||
| Gender | |||
| Male | 15,027 (89.6) | 1737 (10.4) | REF |
| Female | 16,033 (91.5) | 1498 (8.5) | 0.98 (0.90–1.06) |
| Age | |||
| 18–44 years | 7950 (91.8) | 706 (8.2) | REF |
| 45–64 years | 10,427 (89.2) | 1263 (10.8) | 0.90 (0.80–1.00) |
| 65 and older | 12,683 (90.9) | 1266 (9.1) | 1.02 (0.89–1.16) |
| Race/ethnicity | |||
| Non-White | 5889 (90.1) | 651 (10.0) | REF |
| White | 25,171 (90.7) | 2584 (9.3) | 1.17 (1.06–1.29) |
| Marital status | |||
| Married | 16,151 (91.8) | 1438 (8.2) | REF |
| Divorced | 5718 (89.7) | 655 (10.3) | 0.96 (0.86–1.06) |
| Single | 8255 (88.9) | 1027 (11.1) | 0.88 (0.80–0.97) |
| Other marital | 936 (89.1) | 115 (10.9) | 0.89 (0.73–1.10) |
| Insurance status | |||
| Commercial | 15,410 (91.5) | 1433 (8.5) | REF |
| Medicare | 12,523 (89.9) | 1402 (10.1) | 0.89 (0.80–0.98) |
| Medicaid | 2437 (88.5) | 316 (11.5) | 0.95 (0.82–1.09) |
| Self-pay/uninsured | 667 (89.5) | 78 (10.5) | 1.02 (0.81–1.30) |
| Missing insurance | 23 (79.3) | 6 (20.7) | 0.53 (0.28–1.00) |
| Nursing unit | |||
| Psychiatry | 553 (81.0) | 130 (19.0) | REF |
| Medicine | 5090 (85.1) | 889 (14.9) | 0.78 (0.59–1.04) |
| Surgery | 8994 (93.1) | 665 (6.9) | 1.65 (1.22–2.21) |
| Cardiology | 3043 (89.0) | 375 (11.0) | 0.95 (0.70–1.30) |
| Neurology | 2460 (94.8) | 136 (5.2) | 2.18 (1.56–3.05) |
| Oncology | 1716 (87.2) | 253 (12.9) | 0.79 (0.57–1.09) |
| Obstetrics | 1886 (97.8) | 43 (2.2) | 4.75 (3.11–7.25) |
| Pediatrics | 934 (95.1) | 48 (4.9) | 2.15 (1.42–3.26) |
| Intensive Care | 3314 (86.4) | 522 (13.6) | 0.83 (0.61–1.12) |
| Other floors | 3070 (94.6) | 174 (5.4) | 2.22 (1.61–3.08) |
| Primary discharge diagnosisb | |||
| Coronary heart disease | 998 (88.2) | 133 (11.8) | 1.03 (0.84–1.26) |
| COPD | 325 (87.1) | 48 (12.9) | 1.06 (0.75–1.49) |
| Asthma | 111 (85.4) | 19 (14.6) | 0.91 (0.55–1.51) |
| Stroke | 706 (92.5) | 57 (7.5) | 1.04 (0.79–1.38) |
| Cancer | 3410 (91.2) | 331 (8.9) | 0.99 (0.87–1.12) |
| Psychiatric illness | 902 (79.8) | 228 (20.2) | 0.70 (0.56–0.87) |
| Other diagnoses | 27,608 (91.9) | 2419 (8.1) | REF |
| Characteristic | “Yes” or “No” response to SHS screening | “Unknown” response to SHS screening | Multivariable logistic regressiona |
| Pediatric admissions | N (row %) | N (row %) | OR (95% CI) |
| Total | 1204 (85.6%) | 202 (14.4%) | |
| Smoking status | |||
| Non-smoker | 1184 (85.5) | 201 (14.5) | REF |
| Smoker | 20 (95.2) | 1 (4.8) | 3.08 (0.39–24.34) |
| Sociodemographic characteristics | |||
| Gender | |||
| Male | 645 (84.3) | 120 (15.7) | REF |
| Female | 559 (87.2) | 82 (12.8) | 1.22 (0.89–1.68) |
| Age | |||
| 5 years and older | 891 (88.2) | 119 (11.8) | REF |
| Under 5 years | 313 (79.0) | 83 (21.0) | 0.56 (0.40–0.77) |
| Race/ethnicity | |||
| Non-White | 460 (81.3) | 106 (18.7) | REF |
| White | 744 (88.6) | 96 (11.4) | 1.56 (1.12–2.16) |
| Insurance status | |||
| Commercial | 938 (87.8) | 131 (12.3) | REF |
| Medicaid | 233 (77.9) | 66 (22.1) | 0.54 (0.37–0.78) |
| Self-pay/uninsured | 32 (86.5) | 5 (13.5) | 0.86 (0.32–2.26) |
| Primary discharge diagnosisb | |||
| Asthma | 59 (88.1) | 8 (11.9) | 1.52 (0.68–3.37) |
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).