Table 1

 Percent readmissions by various patient and diagnostic factors (categorical variables)

VariableNo% Readmissionp Value*
2 test for comparisons between groups.
CHF, congestive heart failure; CT, computed tomography; CVA, cerebrovascular accident; ERCP, endoscopic retrograde cholangiopancreatography; LVF, left ventricular failure; MRI, magnetic resonance imaging; OGD, oesophagogastroscopy; UTI, urinary tract infection.
Gender
    Male194616.40.043
    Female210514.1
Any psychiatric
    Yes30528.5<0.0001
    No374614.1
Any alcohol
    Yes19631.6<0.0001
    No385514.4
Any gastrointestinal
    Yes29227.4<0.0001
    No375914.3
Hypertension
    Yes61025.6<0.0001
    No344113.4
UTI
    Yes24524.5<0.0001
    No380614.6
Any pneumonia
    Yes26724.7<0.0001
    No378414.5
Any respiratory
    Yes79528.2<0.0001
    No325612.0
Any CHF/LVF
    Yes38132.8<0.0001
    N0367013.4
Any CVA
    Yes29619.90.0187
    No375514.8
Any syncope
    Yes18316.40.647
    No386815.2
Atrial fibrillation
    Yes35728.0<0.0001
    No369414.0
Any neoplasm
    Yes27221.00.0063
    No377814.8
Any coronary
    Yes33720.50.005
    No371314.7
Any anaemia
    Yes13825.40.0007
    No391214.9
Any diabetes
    Yes30016.30.573
    No375015.1
OGD
    Yes30624.8<0.0001
    No374514.4
Injectable antibiotic
    Yes58332.6<0.0001
    No346812.3
Pulmonary scan
    Yes10719.60.197
    No394415.1
ERCP
    Yes9413.80.71
    No395715.2
Cardiac ultrasound
    Yes12226.20.0006
    No392914.9
Vascular ultrasound
    Yes18320.80.0321
    No386814.9
Abdominal ultrasound
    Yes38829.9<0.0001
    No366316.7
Any MRI
    Yes12920.20.112
    No392215.0
MRI brain
    Yes8817.10.627
    No392215.2
CT thorax
    Yes10934.9<0.0001
    No394214.7
CT abdomen
    Yes12433.1<0.0001
    No392714.6
CT brain
    Yes94217.60.0184
    No310914.5