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Table 1 Bivariate analysis of survival by variable categories

From: Mortality and associated risk factors for older adults admitted to the emergency department: a hospital cohort

Variables

Nonsurvivors

n = 306

(21.8%)

Survivors

n = 1100

(78.2%)

TOTAL

n = 1406

P value

 

Sociodemographic

Age, mean (SD)

78.2

(8.3)

76.3

(7.8)

76.7

(7.9)

0.002

Sex, n (%)

131

(22.8)

443

(77.2)

574

(40.8)

0.424

 Man

       

 Woman

175

(21.0)

657

(79.0)

832

(59.2)

 

Schooling, mean (SD)

6.9

(4.9)

6.2

(4.9)

6.3

(4.9)

0.039

Civil status, n (%)

 Married

124

(21.5)

454

(78.5)

578

(43.9)

0.229

 Widower

108

(19.7)

439

(80.2)

547

(41.6)

 

 Other

49

(26.7)

142

(74.3)

191

(14.5)

 

Lives alone, n (%)

32

(22.5)

110

(77.5)

142

(10.4)

0.718

Financial situation, n (%)

 I do not have money problems

103

(20.6)

395

(79.4)

498

(39.4)

0.29

 It is difficult to cover my expenses

132

(22.5)

456

(77.5)

588

(46.5)

 

 My expenses are too much, I cannot cover them

32

(17.9)

146

(82.0)

178

(14.1)

 
 

Health Service

Waiting time in the ED, mean, hours (DE)

4.45

(5.9)

4.9

(5.9)

4.8

(5.9)

0.298

Number of visits to ED, n (%)

 None

124

(22.4)

430

(77.6)

554

(41.4)

0.775

 Once

84

(21.7)

303

(78.3)

387

(28.9)

 

 Twice or more

81

(20.4)

315

(79.5)

396

(29.6)

 

Visits to the Family Medicine Clinic, median (IQR)

5

(0–20)

5

(0–25)

5

(0–25)

0.42

Delayed in seeking attention at ED, n (%)

99

(18.9)

425

(81.1)

524

(37.7)

0.048

Length of stay (in hours) in ED, mean, hours (SD)

111.6

(63.2)

97.84

(68.0)

100.8

(67.2)

< 0.001

Hospital, n (%)

 A

151

(21.4)

554

(78.6)

705

(50.1)

0.753

 B

155

(22.1)

546

(77.9)

701

(49.9)

 

Geriatric care trained residents, n (%)

 Yes

67

(19.4)

279

(80.6)

346

(24.6)

 

 No

239

(22.5)

821

(77.5)

1060

(75.4)

0.213

Referral to hospitalization, n (%)

 Yes

217

(31.0)

482

(69.0)

699

(49.7)

0.000

 No

89

(12.6)

618

(87.4)

707

(50.3)

 
 

Health

Admission reason, n (%)

 Anorexia/weight lost

2

(22.2)

7

(77.8)

9

(1.01)

0.053

 Neurological problems

15

(18.1)

68

(81.9)

83

(5.9)

 

 Associated diabetes problems

3

(13.0)

20

(86.9)

23

(1.6)

 

 Cardiovascular problems

12

(14.6)

70

(85.3)

82

(5.8)

 

 Pneumological problems

28

(28.8)

69

(71.13)

97

(6.9)

 

 Gastrointestinal problems

55

(22.0)

195

(78.0)

250

(17.8)

 

 Genitourinary problems

8

(17.4)

38

(82.6)

46

(3.3)

 

 Nonspecific symptoms

28

(15.9)

148

(84.1)

176

(12.5)

 

 Procedures/other services

7

(13.4)

45

(86.6)

52

(3.7)

 

 Other reasons

15

(20.8)

57

(79.2)

72

(5.1)

 

 Nonspecified

133

(25.7)

383

(74.3)

516

(36.7)

 

Number of admission reasons, median (RIC)

2

(1–7)

2

(1–6)

2

(1–7)

0.69

Delirium scale changes, n (%)

 Improved

80

(26.5)

222

(73.5)

302

(21.5)

< 0.001

 Same

202

(19.3)

845

(80.7)

1047

(74.5)

 

 Worsened

24

(42.1)

33

(57.9)

57

(4.0)

 

Visual analogue scale of pain, mean (SD)

3.39

(3.7)

3.57

(3.9)

3.54

(3.7)

0.475

Grip strength, mean (SD)

3.37

(5.6)

4.81

(7.1)

4.49

(6.8)

0.001

Falls, n (%)

180

(21.5)

657

(78.5)

837

(59.5)

0.776

Number of medications, median (IQR)

3

(0–12)

3

(0–16)

3

(0–16)

0.112

Feeling sad in the last two weeks, n (%)

128

(20.8)

485

(79.2)

613

(68.5)

0.221

Charlson index, median (RIC)

4

(1–13)

6

(5–10)

4

(1–13)

0.896

MMSE, mean (SD)

17.8

(7.0)

19.4

(6)

19.41

(6.3)

< 0.001

Barthel index, mean (SD)

63.32

(34.2)

72.16

(28.6)

70.29

(30.1)

< 0.001

ISAR, n (%)

198

(17.1)

960

(82.9)

1158

(82.4)

0.001

FRAIL, n (%)

134

(21.8)

480

(78.2)

614

(45.2)

< 0.001