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Table 1 Baseline characteristics stratified by CFS frailty group

From: Frailty in older adults admitted to hospital: outcomes from the Western Sydney Clinical Frailty Registry

 

All

n = 592

Non-frail (robust)

CFS 1–4

n = 174 (29)

Mild- moderately frail

CFS 5–6

n = 295 (50)

Severely frail

CFS 7–9

n = 123 (21)

P*=

Demographic characteristics

Sex – Female n, (%)

349 (59)

86 (49)

180 (61)

83 (66)

0.005

Age median (IQR)

82 (76–86)

78 (73–83)

82 (76–87)

85 (79–90)

< 0.001

BMI median (IQR)

27 (22–32)

27 (24–32)

27 (22–33)

25 (21–31)

0.039

Primary Language English n, (%)

484 (82)

144 (83)

245 (83)

94 (77)

0.345

Reside in Residential Aged Care Facility n, (%)

60 (10)

1 (0.6)

24 (8)

35 (29)

< 0.001

Clinical characteristics

Australian Modified Karnofsky Performance Scale (pre-morbid)

60 (50–70)

80 (70–90)

60 (50–60)

40 (40–50)

< 0.001

Modified Charlson comorbidity Index

1 (0–2)

1 (0–2)

1 (0–2)

1 (0–3)

0.005

Assessment of Cognitive function completed n, (%)

433 (73)

134 (77)

211 (72)

88 (72)

0.391

Evidence of Cognitive deficit (according to a validated assessment tool) n, (%)

138 (23)

21 (12)

59 (20)

58 (47)

<0.001

4AT (Delirium and cognitive impairment screening) score (n = 398) median (IQR)

0 (0–3)

0 (0–1)

0 (0–2)

3 (0–4)

< 0.001

Medication use

Antiepileptics n, (%)

36 (6)

8 (5)

21 (7)

7 (6)

0.533

Anxiolytics & hypnotics/benzodiazepines

n, (%)

56 (10)

17 (10)

24 (8)

15 (12)

0.428

Analgesics n, (%)

443 (75)

116 (67)

231 (78)

96 (78)

0.013

Hypoglycaemics (oral, insulin)

n, (%)

181 (32)

46 (26)

103 (35)

40 (33)

0.162

Antacids n, (%)

186 (31)

24 (13)

111 (38)

51 (42)

< 0.001

Loop Diuretics n, (%)

170 (29)

32 (19)

95 (32)

43 (35)

0.001

Antiarrhythmic (including Digoxin) n, (%)

191 (32)

63 (36)

98 (33)

30 (25)

0.088

Nitrate or other vasodilators

n, (%)

81 (14)

19 (11)

47 (16)

15 (12)

0.270

Antidepressants n, (%)

123 (21)

26 (15)

66 (23)

31 (25)

0.063

Novel Oral Anticoagulants (NOACs) n, (%)

147 (25)

34 (20)

75 (26)

28 (40)

0.079

Warfarin n, (%)

41 (7)

11 (6)

20 (7)

10 (8)

0.825

Antihypertensive n, (%)

345 (58)

100 (56)

180 (61)

65 (53)

0.294

Proton-pump inhibitors n, (%)

131 (22)

52 (30)

61 (21)

18 (15)

0.005

Antiparkinsonian drugs n, (%)

20 (4)

9 (5)

11 (4)

4(3)

0.730

Statins n, (%)

351 (59)

111 (64)

179 (61)

61 (50)

0.039

Antiplatelet n, (%)

253 (43)

88 (51)

129 (44)

36 (29)

0.001

Antipsychotics n, (%)

39 (7)

6 (4)

19 (7)

14 (11)

0.025

Total number of prescription medications n, (%)

9 (7–13)

8 (6–11)

10 (7–14)

10 (7–14)

< 0.001

Biochemistry

Creatinine

83 (66–111)

82 (66–99)

82 (66–112)

85 (65–127)

0.082

Albumin

31 (28–34)

33 (28–35)

31 (28–33)

29 (24–32)

< 0.001

Haemoglobin

120 (106–132)

124 (112–137)

120 (105–130)

113 (103–129

< 0.001

  1. * Chi-squared or exact permutation test for categorical variables, Jonckheere-Terpstra nonparametric test for continuous variables
  2. Legend: IQR; Inter quartile range; BMI; Body Mass Index; NOAC; Novel oral anticoagulant; 4AT – 4 A’s test: a score of 4 or more suggests delirium, a score of 1–3 suggests cognitive impairment