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Table 1 Adjusted odds ratios for patients undergoing non-clinical transfer within 48 hours of critical care admission

From: Effect of non-clinical inter-hospital critical care unit to unit transfer of critically ill patients: a propensity-matched cohort analysis

 

Adjusted odds ratio

95% confidence interval

Pvalue

Sex

   

   Male versus female

1.00

0.87 to 1.16

0.95

Age

See Figure 1

< 0.001

 

Quintiles of IMD

   

   1 (least deprived)

1

-

0.95

   2

0.97

0.75 to 1.26

 

   3

0.99

0.77 to 1.28

 

   4

1.06

0.83 to 1.35

 

   5 (most deprived)

0.98

0.77 to 1.25

 

Past medical history of one or more specified serious conditionsa

   

   Yes versus no

0.96

0.79 to 1.17

0.70

Admission type

   

   Unplanned local admission

1

-

< 0.001

   Planned local medical admission

0.89

0.42 to 1.90

 

   Planned local surgical admission

0.33

0.16 to 0.68

 

   Unplanned transfer in

1.16

0.82 to 1.64

 

   Planned transfer in

1.84

1.31 to 2.59

 

   Repatriation

0.36

0.13 to 0.96

 

Surgical status

   

   Nonsurgical

1

-

< 0.001

   Emergency/urgent

0.49

0.38 to 0.64

 

   Elective/scheduled

0.23

0.12 to 0.42

 

Reason for admission by body system

   

   Cardiovascular

1

-

< 0.001

   Respiratory

1.00

0.80 to 1.25

 

   Neurological

1.51

1.17 to 1.94

 

   Gastrointestinal

0.81

0.61 to 1.06

 

   Genitourinary including renal

0.63

0.45 to 0.87

 

   Haematological/immunological

0.68

0.36 to 1.31

 

   Endocrine, metabolic, thermoregulation and poisoning

0.66

0.46 to 0.91

 

   Musculoskeletal

0.98

0.59 to 1.65

 

   Dermatological

1.12

0.57 to 2.22

 

ICNARC Physiology Score

See Figure 2

< 0.001

 

Month of admission to critical care

   

   January

1

-

0.003

   February

0.70

0.51 to 0.95

 

   March

0.80

0.59 to 1.06

 

   April

0.71

0.53 to 0.97

 

   May

0.68

0.50 to 0.92

 

   June

0.55

0.40 to 0.77

 

   July

0.50

0.35 to 0.72

 

   August

0.73

0.53 to 1.00

 

   September

0.54

0.38 to 0.77

 

   October

0.61

0.44 to 0.86

 

   November

0.61

0.43 to 0.85

 

   December

0.80

0.59 to 1.08

 

Time of admission to critical care

   

   07:00 to 18:59

1

-

0.24

   19:00 to 23:59

0.86

0.72 to 1.03

 

   00:00 to 06:59

0.93

0.78 to 1.11

 

Number of beds in referring critical care unit

0.96

0.94 to 0.98

< 0.001

  1. ICNARC, Intensive Care National Audit and Research Centre; IMD, Index of Multiple Deprivation. aThe conditions included in the variable 'past medical history of one or more specified serious conditions' are: biopsy-proven cirrhosis, portal hypertension, hepatic encephalopathy, very severe cardiovascular disease (New York Heart Association functional class IV), severe respiratory disease (permanent shortness of breath with light activity), home ventilation, chronic renal replacement therapy, AIDS, daily high-dose steroid treatment, radiotherapy, chemotherapy, metastatic disease, acute/chronic myelogenous/lymphocytic leukaemia or multiple myeloma, lymphoma, or congenital immunohumoral or cellular immune deficiency state.