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Table 6 Multivariate survival analysis for the different demographic and clinical variables

From: Long term effects of an integrated care intervention on hospital utilization in patients with severe COPD: a single centre controlled study

Variable

Group

Sex

Age(yrs)

BMI

PaCO 2 , kPa

Home-care nursing

UC group

IC group

Male

Female

<70

70-79

≥80

<18

18-25

>25

≤6.1

>6.1

No

Yes

Unadjusted hazard ratios (univariate) Total (95% CI)

1

1.46 (0.85-2.51)

1

1.10 (0.65-1.88)

0.52 (0.27-0.99)

0.52 (0.28-0.96)

1

2.49 (1.30-4.78)

1

0.85 (0.44-1.66)

1

1.87 (1.09-3.19)

1

2.80 (1.55-5.07)

Adjusted (multivariate) hazard ratio Total (95% CI)

1

1.33 (0.77-2.33)

1

0.75 (0.43-1.32)

0.80 (0.40-1.66)

0.57 (0.30-1.13)

1

3.09 (1.55-6.17)

1

0.96 (0.47-1.99)

1

1.81 (1.01-3.24)

1

2.10 (1.10-4.04)

  1. IC: integrated care; UC: usual care; BMI: body mass index; PaCO 2: partial pressure of carbon dioxide in the arterial blood.