Table 1

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

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.

Amounts are in US Dollars, exchange rate of 11.68 Mexican pesos for each $1.00 US Dollar at June 2011.

⌐ Reference category=good.

* p value ≤ 0.005; ** p value ≤ 0.05.

López-Ortega et al.

López-Ortega et al. BMC Health Services Research 2013 13:51   doi:10.1186/1472-6963-13-51

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