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Table 1 ICU Admission Characteristics of Patients in Full Cohort, Excluded Patients, and One Month Analysis Sample

From: Disability in activities of daily living, depression, and quality of life among older medical ICU survivors: a prospective cohort study

Characteristic

Full Cohort

(n = 309) †

Excluded

(n = 199) †

One Month Analysis Sample

(n = 110) ‡

P-value††

 

Mean (SD) or n (%)

Mean (SD) or n (%)

Mean (SD) or n (%)

 

Age in years

74.7 (8.5)

75.9 (8.3)

72.5 (8.3)

0.001

Male

145 (47)

96 (48)

49 (45)

0.53

Education in years

12.5 (2.8)

12.4 (2.9)

12.5 (2.6)

0.75

Non-white race

51 (16)

35 (18)

16 (14)

0.49

APACHE II score

23.5 (6.4)

24.6 (6.3)

21.4 (6.1)

<0.0001

Charlson Co-Morbidity Index

1.8 (1.9)

1.9 (2.0)

1.7 (1.6)

0.99

Admitted from home*

241 (78)

143 (72)

98 (89)

0.0005

Baseline Medical Status

    

Evidence of depression**

85 (28)

63 (32)

22 (20)

0.03

Dementia

95 (31)

75 (38)

20 (18)

0.0004

Any Impairment in Activities of Daily Living

115 (37)

94 (47)

21 (19)

<0.0001

   Bathing impairment

104 (34)

88 (44)

16 (14)

<0.0001

   Grooming impairment

42 (14)

37 (19)

5 (5)

0.0005

   Transfer bed to chair impairment

54 (17)

48 (24)

6 (5)

<0.0001

   Walk across room impairment

56 (18)

49 (25)

7 (7)

<0.0001

   Ability to dress impairment

44 (14)

34 (17)

10 (9)

0.05

   Ability to eat impairment

10 (3)

10 (5)

0 (0)

0.02

   Ability to toilet impairment

41 (13)

38 (19)

3 (3)

<0.0001

Admitting Diagnosis

    

   Sepsis

51 (16)

39 (20)

12 (11)

0.049

   Respiratory

156 (51)

104 (52)

52 (47)

0.40

   Neurologic

5 (2)

5 (3)

0 (0)

0.16

   Gastrointestinal hemorrhage

52 (17)

24 (12)

28 (25)

0.003

   Other

45 (15)

27 (14)

18 (16)

0.50

ICU Factors

    

Delirium during ICU Stay***

239 (79)

177 (92)

61 (55)

<0.0001

Intubated

167 (54)

126 (63)

41 (37)

<0.0001

Days of ventilation, Median (IQR)****

6 (8)

6 (10)

4 (3)

0.006

Length of stay, Median (IQR)****

5 (6)

6 (9)

3 (3)

<0.0001

Total days of delirium (IQR)****

5 (6)

6 (9)

1 (3)

<0.0001

  1. †Missing data present for some subjects. For Dementia missing = 3; Charlson Co-Morbidity missing = 1; Education missing = 9; Delirium missing = 5
  2. † Missing data present for some subjects. For Dementia missing = 1; Grooming impairment missing = 2; Ability to dress impairment missing = 2; Ability to eat impairment missing = 1; Ability to toilet impairment missing = 2
  3. ‡Missing data present for some subjects. For Dementia missing = 1;
  4. *Admitted from home versus Skilled Nursing Facility or Rehabilitation Center
  5. **Evidence by surrogate or chart
  6. ***Delirium by CAM interview or chart review during entire ICU stay
  7. ****During entire ICU stay (includes first admission and, if applicable re-admissions to ICU)
  8. ††Comparison of excluded (n = 199) and analysis sample (n = 110): Chi-square or Fisher's Exact for categorical variables and T-test or Wilcoxon test as appropriate for continuous variables