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Table 2 Univariate and multivariable analysis of variables associated with frequent emergency house calls

From: Development and validation of a risk score to predict the frequent emergency house calls among older people who receive regular home visits

 

Univariable analysis

Multivariable logistic regression

LASSO logistic regression

Point score

Non-frequent emergency house calls group

(n=4,254)

Frequent emergency house callsa group

(n=634)

P value

OR (95%CI)

P value

β coefficient

 

n (%)

n (%)

     

Age category (years)

 65−74

409 (9.6)

96 (15.1)

< 0.001

Reference

-

-

-

 75−84

1654 (38.9)

241 (38.0)

0.85 (0.64–1.13)

0.264

-

-

 85−94

1896 (44.6)

235 (37.1)

0.93 (0.69–1.25)

0.625

-

-

 ≥ 95

295 (6.9)

62 (9.8)

1.69 (1.14–2.51)

0.009

-

-

Gender: male (vs. female)

1649 (38.8)

323 (51.0)

< 0.001

1.25 (1.04–1.51)

0.020

-

-

Medical procedure at home

     

-

-

 Self-injection

87 (2.1)

12 (1.9)

0.799

0.95 (0.50–1.80)

0.872

-

-

 Central venous nutrition

46 (1.1)

18 (2.8)

<0.001

1.44 (0.81–2.58)

0.217

-

-

 Enteral nutrition

10 (0.2)

4 (0.6)

0.097

1.81 (0.54–6.08)

0.339

-

-

 Home oxygen therapy

192 (4.5)

100 (15.8)

< 0.001

2.81 (2.11–3.74)

<0.001

0.71

3

 Use of ventilator/ tracheostomy performed

29 (0.7)

1 (0.2)

0.168

0.15 (0.02–1.16)

0.070

-

-

 Urinary self- catheterization

15 (0.4)

3 (0.5)

0.721

1.69 (0.46–6.16)

0.428

-

-

Long-term care need levels

  

<0.001

  

-

-

 Care need level 1

807 (19.0)

43 (6.8)

 

Reference

 

-

 

 Care need levels 2–3

1900 (44.7)

269 (42.4)

 

2.06 (1.46–2.89)

<0.001

-

 

 Care need levels 4–5

1547 (36.4)

322 (50.8)

 

3.23 (2.30–4.54)

<0.001

0.22

1

Medical diagnosis at the start of the regular home visit

 Cerebrovascular diseases

1742 (41.0)

211 (33.3)

<0.001

0.82 (0.68–0.99)

0.037

-

-

 Cardiac disease

2425 (57.0)

358 (56.5)

0.800

0.92 (0.76–1.11)

0.382

-

-

 Lower respiratory tract disease

1882 (44.2)

358 (56.5)

<0.001

1.17 (0.97–1.41)

0.096

-

-

 Joint diseases

2588 (60.8)

390 (61.5)

0.744

0.89 (0.74–1.07)

0.220

-

-

 Dementia

1920 (45.1)

191 (30.1)

<0.001

0.79 (0.65–0.97)

0.023

-

-

 Parkinson’s disease

303 (7.1)

32 (5.1)

0.054

0.93 (0.63–1.38)

0.730

-

-

 Diabetes

1390 (32.7)

225 (35.5)

0.160

1.05 (0.87–1.27)

0.617

-

-

 Vision or hearing impairment

309 (7.3)

33 (5.2)

0.058

0.71 (0.48–1.04)

0.078

-

-

 Fractures

802 (18.9)

90 (14.2)

0.005

0.86 (0.67–1.10)

0.233

-

-

 Cancer

1056 (24.8)

348 (54.9)

< 0.001

2.97 (2.45–3.60)

<0.001

0.89

4

  1. Abbreviations: OR Odds ratio, CI Confidence interval, LASSO Least absolute shrinkage and selection operator
  2. aEmergency house calls once per month or more, on average, during each observation period