Table 4

Inpatient Logistic Regression Model


All Inpatient Admits Number of Events = 1,855
MDC 08 Inpatient Admits Number of Events = 433

Variable Label
Odds Ratio
Confidence Intervals
Odds Ratio
Confidence Intervals

Male (Female ref)
1.09
0.98–1.2
1.22
0.99–1.49
Age 18–24(ref)
-

-

Age 25 – 34
0.87
0.60–1.28
0.47
0.14–1.55
Age 35 – 44
0.81
0.60–1.26
1.45
0.57–3.71
Age 45 – 54
1.16
0.83–1.62
2.09
0.83–5.23
Age 55 – 64
1.56
1.12–2.18
3.45
1.38–8.63
Age 65 – 74
2.35
1.67–3.29
5.11
2.04–12.76
Age 75 – 85
4.00
2.82–5.65
11.26
4.50–28.21
Age > 85
5.46
3.58–8.33
12.57
4.67–34.16
Dx Category II (I=ref)
1.00
0.84–1.19
1.64
1.22–2.20
Dx Category III
1.48
1.24–1.76
1.74
1.27–2.39
Dx Category IV
2.43
1.91–3.08
5.64
4.09–7.78
Anxiety
1.14
0.99–1.32
1.17
0.89–1.53
Psychosis
1.72
1.32–2.25
1.38
0.81–2.35
Depression
1.27
1.13–1.46
0.96
0.74–1.27
Asthma/COPD
1.37
1.18–1.58
1.22
0.92–1.60
Diabetes
2.02
1.69–2.40
1.14
0.80–1.63
GI Disorder
1.12
0.97–1.28
1.10
0.86–1.43
HD/Hypertension
1.72
1.53–1.94
1.19
0.95–1.49
Rheumatoid Arthritis
1.36
1.10–1.68
1.11
0.74–1.65
Opiate dispense
1.41
1.25–1.59
1.27
1.02–1.59
NSAID dispense
1.19
1.06–1.33
1.76
1.43–2.17

Comorbidity abbreviations: COPD = Chronic Obstructive Lung Disease, GI = Gastrointestinal, HD/Hyperten=Heart Disease/Hypertension

Ritzwoller et al. BMC Musculoskeletal Disorders 2006 7:72   doi:10.1186/1471-2474-7-72