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Table 3 Unadjusted and adjusted hazard ratios for 30-day readmission among older patients discharged early from emergency departments

From: Readmission of older acutely admitted medical patients after short-term admissions in Denmark: a nationwide cohort study

 

Unadjusted HR (95% CI)

Adjusted HR (95% CI)1

Diseases of the cardiovascular system

 Angina Pectoris

0.84 (0.76-0.94)

0.83 (0.75-0.93)

 Atrial fibrillation

0.93 (0.88-0.98)

1.05 (1.00-1.11)

 Deep vein thrombosis

0.75 (0.65-0.86)

0.82 (0.71-0.94)

 Hypertension

0.74 (0.66-0.84)

0.86 (0.76-0.97)

 Heart failure

1.56 (1.39-1.75)

1.26 (1.12-1.41)

Diseases of the respiratory system

 COPD

1.51 (1.41-1.62)

1.33 (1.25-1.43)

 Respiratory failure

1.74 (1.51-2.02)

1.55 (1.34-1.79)

Diseases of the nervous system

 TIA

0.49 (0.42-0.58)

0.54 (0.46-0.63)

 Epilepsy

0.74 (0.61-0.90)

0.71 (0.59-0.86)

Endocrine and nutritional diseases

 Diabetes

1.12 (0.95-1.33)

0.90 (0.76-1.07)

 Dehydration

1.35 (1.24-1.47)

1.28 (1.17-1.39)

Diseases of the digestive system

 Dyspepsia

0.75 (0.57-0.97)

0.80 (0.62-1.04)

 Esophagitis

0.82 (0.43-1.58)

0.81 (0.42-1.55)

 Constipation

1.34 (1.20-1.47)

1.26 (1.14-1.39)

 Ulcer without bleeding

0.80 (0.40-1.59)

0.77 (0.39-1.55)

Hematological diseases

 Anemia

1.72 (1.63-1.82)

1.45 (1.38-1.54)

Infectious disease

 Erysipelas

1.08 (0.93-1.26)

1.08 (0.93-1.25)

 Gastroenteritis

1.10 (0.93-1.30)

1.10 (0.93-1.29)

 Pneumonia

1.22 (1.13-1.32)

1.15 (1.06-1.25)

 Urinary Tract Infection

1.21 (1.13-1.30)

1.15 (1.07-1.24)

Spinal disease/arthritis

 Back Pain

0.93 (0.81-1.07)

1.02 (0.88-1.17)

 Arthritis

0.47 (0.29-0.76)

0.51 (0.31-0.81)

Mental and behavioral disorders

 Misuse of drugs and alcohol

0.83 (0.72-0.96)

0.85 (0.74-0.99)

R-diagnoses2

 Chest pain

0.74 (0.68-0.80)

0.76 (0.70-0.82)

 Dyspnea

1.38 (1.28-1.49)

1.25 (1.15-1.35)

 Fever

1.77 (1.55-2.02)

1.52 (1.33-1.73)

 Headache

0.74 (0.60-0.91)

0.80 (0.65-0.99)

 Pains in neuromuscular system

0.79 (0.68-0.92)

0.80 (0.69-0.94)

 Abdominal pain

1.08 (1.02-1.15)

1.12 (1.05-1.19)

 Other pain

1.11 (0.99-1.25)

1.09 (0.96-1.22)

 Vertigo

0.68 (0.61-0.77)

0.73 (0.65-0.82)

 Other R-diagnoses

1.21 (1.16-1.27)

1.18 (1.13-1.23)

Z-diagnoses3

 Malignancy

1.46 (1.32-1.60)

1.51 (1.37-1.66)

 Central-nervous diseases

0.63 (0.55-0.71)

0.66 (0.58-0.75)

 Heart diseases

0.75 (0.69-0.82)

0.81 (0.74-0.88)

 Myocardial infarction

0.66 (0.61-0.70)

0.67 (0.62-0.72)

 Rehabilitation

0.87 (0.83-0.92)

0.88 (0.84-0.93)

 Other Z-diagnoses

0.86 (0.79-0.93)

0.88 (0.82-0.95)

  1. CI confidence interval. COPD chronic obstructive pulmonary disease. HR hazard ratio. TIA transient ischaemic attack
  2. 1Adjusted for age, gender, Charlson Comorbidity Index and marital status
  3. 2Used if symptoms, signs and abnormal clinical and laboratory findings are not elsewhere classified. 3 Used when a diagnosis has not yet been confirmed