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Table 4 Hazard ratios for 30-day mortality with the discharge diagnosis as covariate, unadjusted and adjusted for age, gender, comorbidity and marital status

From: Mortality of older acutely admitted medical patients after early discharge from emergency departments: a nationwide cohort study

Discharge diagnosesa

Unadjusted HR

(95% CI)

Adjusted HRb

(95% CI)

Diseases of the cardiovascular system

 Angina pectoris

0.19 (0.11–0.34)

0.20 (0.11–0.37)

 Atrial fibrillation

0.26 (0.20–0.33)

0.38 (0.29–0.50)

 Deep vein thrombosis

0.45 (0.29–0.72)

0.53 (0.34–0.85)

 Hypertension

0.14 (0.07–0.30)

0.18 (0.09–0.38)

 Heart failure

2.11 (1.64–2.72)

1.52 (1.17–1.95)

Diseases of the respiratory system

 COPD

1.22 (1.01–1.48)

1.08 (0.89–1.30)

 Respiratory failure

3.85 (2.98–4.97)

3.18 (2.46–4.11)

Diseases of the nervous system

 TIA

0.30 (0.17–0.51)

0.35 (0.20–0.60)

 Epilepsy

0.26 (0.11–0.61)

0.29 (0.12–0.70)

Endocrine and nutritional diseases

 Diabetes

1.30 (0.86–1.95)

1.07 (0.71–1.61)

 Dehydration

4.00 (3.50–4.57)

2.87 (2.51–3.29)

Diseases of the digestive system

 Dyspepsia

0.28 (0.09–0.86)

0.33 (0.11–1.01)

 Esophagitis

 

 Constipation

1.50 (1.17–1.90)

1.31 (1.02–1.67)

 Ulcer without bleeding

 

Hematological diseases

 Anemia

2.04 (1.80–2.33)

1.45 (1.27–1.66)

Infectious disease

 Erysipelas

0.61 (0.36–1.03)

0.62 (0.36–1.04)

 Gastroenteritis

0.51 (0.28–0.95)

0.55 (0.29–1.01)

 Pneumonia

2.62 (2.27–3.03)

2.24 (1.94–2.59)

 Urinary Tract Infection

1.75 (1.50–2.04)

1.33 (1.14–1.55)

Spinal disease/arthritis

 Back Pain

0.62 (0.39–0.97)

0.71 (0.45–1.11)

 Arthritis

0.40 (0.10–1.60)

0.51 (0.13–2.05)

Mental and behavioral disorders

 Misuse of drugs or alcohol

0.81 (0.55–1.19)

1.01 (0.68–1.48)

R-diagnosesc

 Chest pain

0.28 (0.20–0.39)

0.31 (0.22–0.42)

 Dyspnea

1.89 (1.59–2.25)

1.57 (1.32–1.87)

 Fever

0.98 (0.63–1.52)

1.03 (0.66–1.60)

 Headache

0.17 (0.06–0.54)

0.20 (0.07–0.64)

 Pains in neuromuscular system

0.81 (0.55–1.20)

0.72 (0.49–1.08)

 Abdominal pain

0.78 (0.65–0.94)

0.86 (0.72–1.04)

 Other pain

1.30 (0.98–1.74)

1.26 (0.95–1.67)

 Vertigo

0.30 (0.19–0.47)

0.32 (0.20–0.51)

 Other R-diagnoses

1.44 (1.30–1.60)

1.32 (1.19–1.46)

Z-diagnosesd

 Malignancy

1.67 (1.33–2.11)

2.06 (1.64–2.59)

 Central-nervous diseases

0.80 (0.59–1.08)

0.84 (0.62–1.13)

 Heart diseases

0.30 (0.21–0.42)

0.36 (0.25–0.51)

 Myocardial infarction

0.24 (0.18–0.32)

0.26 (0.20–0.36)

 Rehabilitation

0.95 (0.83–1.08)

0.96 (0.84–1.10)

 Other Z-diagnoses

1.04 (0.87–1.25)

1.03 (0.86–1.24)

  1. COPD chronic obstructive pulmonary disease, CI confidence interval, HR hazard ratio, TIA transient ischemic attack
  2. aThe reference is other (coded zero) in the individual diagnosis group (coded 1)
  3. bHazard ratio for the discharge diagnosis adjusted for age, gender, Charlson Comorbidity Index and marital status
  4. cUsed if symptoms, signs and abnormal clinical and laboratory findings are not elsewhere classified. dUsed when a diagnosis has not yet been confirmed