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Table 1 Definition of variables and main statistics, stratified by service (IMW vs GEMU)

From: Economic burden to primary informal caregivers of hospitalized older adults in Mexico: a cohort study

Variables

Description

IMW (n=140)

GEMU (n=70)

Expenditures

   

Total overall OOPE

Mean of total expenditures (±SD)

174.0 (251.15)

67* (66.52)

Binary overall OOPE

Variable indicating patient/caregiver incurred in expenses; percentage; 1=Yes

83.70

84.06

Older adult

   

Age

Mean age of hospitalised patient (±SD)

72.3 (7.7)

72.3 (7.2)

Male

Gender of hospitalised patient percentage; 1=male

44.12

41.43

Acute illness severity

APACHE II score (±SD)

11.4 (5.1)

10.62 (4.6)

Comorbidity

Charlson Index score (±SD)

8.57 (3.05)

8.21 (2.78)

ADL

Barthel Index (±SD)

85 (23.59)

89.3 (19.7)

Cognitive status

MMSE score (0–30) (±SD)

19.7 (6.5)

21.0 (6.4)

Cognitive decline

Diagnosis of cognitive decline percentage; 1=cognitive decline

47.8

35.1

Services

   

Satisfaction

Satisfaction with care/service received percentage; 1=average/bad⌐ .

22.4

6.5*

Length of stay

Mean of number of days in hospital (±SD)

9.26 (6.2)

9.87 (10.01)

Caregivers

   

Gender

Gender of caregiver (1=male)

11.4

23.4**

Age

Mean age of caregiver (±SD)

47.4 (11.78)

46.87 (13.72)

No. caregivers/patient

Number of caregivers by patient throughout the stay; percentage;

  

0

no caregiver

16.18

8.6**

1

one caregiver

43.38

68.6

2

two caregivers

27.94

17.1

3

three caregivers

9.56

5.7

4

four caregivers

2.21

 

5

five caregivers

0.74

 

Days without income

Mean of days of lost income due to caregiving (±SD)

4.04 (8.43)

4.20 (9.16)

Mean caregiver income

Mean monthly income of caregiver (±SD)

404.76 (768.32)

216.25 (169.37)

  1. Notes: IMW=internal medicine ward; GEMU=geriatric evaluation and management unit; OOPE=out-of-pocket expenditures; SD=standard deviation; ADL=activities of daily living; APACHE II=Acute Physiology and Chronic Health Evaluation II; MMSE=Mini-Mental Status Examination.
  2. Amounts are in US Dollars, exchange rate of 11.68 Mexican pesos for each $1.00 US Dollar at June 2011.
  3. ⌐ Reference category=good.
  4. * p value ≤ 0.005; ** p value ≤ 0.05.