'Before Medically Advised’ Discharges Following Hospitalization for Asthma Exacerbation: Disparities in Treatment and Outcomes
Bibliographic record
Abstract
Abstract INTRODUCTION Before medically advised (BMA) discharges – alternatively known as ‘against medical advice'—are associated with poor outcomes such as increased readmission among patients with asthma. However, it is unclear what factors contribute to these worsened outcomes or what care these patients receive upon discharge. In this study, we evaluated patterns of post-discharge care (i.e. medication prescriptions, referrals, and follow-up) after hospitalizations for asthma exacerbation among patients discharging BMA versus non-BMA. METHODS We developed a cohort using electronic health record data of patients ≥ 18 years old within the Johns Hopkins Health System who had an admission for asthma exacerbation, as defined by ICD-10 codes, and were discharged to home. All admissions were classified as either a BMA or planned (i.e. non-BMA) discharge according to their discharge disposition. Demographics, clinical characteristics, and 30-day readmission were compared between BMA and non-BMA discharges using chi-square and Mann-Whitney U tests. We then evaluated the proportion of discharges in which the patient received each of the following at discharge: an oral steroid prescription, inhaled corticosteroid prescription, outpatient referral for any service, or scheduled follow-up with a primary care physician or pulmonologist within 14-days. Differences in each component of discharge care were compared using logistic regression models with clustered standard errors, adjusted for age, race, sex, length of stay, history of exacerbation, insurance, time of discharge, and medical center. RESULTS This cohort included 5,507 admissions for asthma exacerbation, of which 205 (3.7%) resulted in a BMA discharge. Compared to non-BMA discharges, those discharged BMA were younger (39 vs 48 years, p<0.001) with a higher area deprivation index (67 vs 50, p<0.001). Readmission at 30 days more commonly occurred after a BMA discharge (15 vs 10%, p=0.03). Compared to non-BMA discharges, those who discharged BMA were less likely to receive an oral steroid prescription (54% vs 76%, p<0.001 ), inhaled corticosteroid prescription (32% vs 49%, p<0.001), outpatient referral (9% vs 34%, p<0.001), or scheduled 14-day follow-up (19% vs 27%, p=0.01) (Figure 1). All results were similar in adjusted models, and patients discharging BMA were particularly less likely to receive an outpatient prescription for oral steroids (OR 0.25, 95% CI 0.18-0.35) CONCLUSIONS Compared to non-BMA discharges, patients discharged BMA following hospitalization for an asthma exacerbation were less likely to receive outpatient steroids, inhaled corticosteroids, referrals, or follow-up, and they more likely to be readmitted at 30 days. These treatment gaps present potential opportunities to improve care.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.006 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".