Clinical Study

Risk of Venous Thromboembolism in Patients Nursed at Home or in Long-Term Care Residential Facilities

Table 2

Unadjusted analysis: results of the logistic model with log link to obtain relative risks for each risk factor. For each categorical variable the reference category is indicated by a relative risk of 1 and the corresponding risk of DVT is reported in brackets.

VariableRelative risk95% Confidence interval

Hours/day spent in bed1.0310.940–1.132.511
Time of onset of reduced mobility1.0011.000–1.002.025
Age1.0070.980–1.035.622

Cardiovascular disease°
 No1 (0.190)0.123–0.296
 Yes versus No0.9200.519–1.628.074

Long-term residential care1 (0.238)0.179–0.317
 Nursed at home versus long-term care0.2400.089–0.647.005

Bathroom with help
 No1(0.203)0.144–0.286
 Yes versus No0.7410.410–1.340.321

Previous VTE
 No1(0.173)0.128–0.235
 Yes versus No1.3840.646–2.963.403

Causes of reduced mobility
 Cognitive impairment/dementia1(0.255)0.182–0.358<.001
 Other versus cognitive impairment/dementia0.4780.267–0.856.013

COPD
 No1 (0.179)0.132–0.243
 Yes versus No1.0820.496–2.361.844

Leg edema
 No1 (0.189)0.137–0.260
 Yes versus No0.8550.445–1.642.638

°Chronic heart failure and previous non-disabling stroke taken together. Previous disabling stroke is considered in the group “causes of reduced motility.”