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Table 3 Multivariable generalized linear models for annual medical service utilization and expenditure stratified by SMMIa and dietary diversity (n = 1337) (exp, β coefficients and 95% confidence intervals)

From: Medical costs of a low skeletal muscle mass are modulated by dietary diversity and physical activity in community-dwelling older Taiwanese: a longitudinal study

 

SMMI high riska

SMMI low risk

P for trend

 

DDS ≤4

DDS >4

DDS ≤4

DDS >4

 

exp (β) (95% CI)

exp (β) (95% CI)

exp (β) (95% CI)

 

n (%)

168 (12.6)

162 (12.1)

506 (37.9)

501 (37.5)

 

Deceased n (%)

100 (59.5)

65 (40.1)

172 (33.9)

133 (26.5)

 

Medical service utilization

 Ambulatory care visits, timesb

  Outpatient services

0.86 (0.82, 0.89) ***

0.94 (0.91, 0.98) ***

0.94 (0.92, 0.96)***

Reference

<0.001

  Preventive care

0.81 (0.68, 0.98) *

0.92 (0.78, 1.10)

0.91 (0.81, 1.02)

Reference

0.030

  Dental services

0.60 (0.47, 0.77) ***

0.76 (0.63, 0.92) **

0.92 (0.81, 1.06)

Reference

<0.001

  Emergency

1.18 (0.94, 1.48)

1.26 (1.01, 1.58)

1.02 (0.86, 1.22)

Reference

0.051

 Hospitalization, daysb

2.02 (1.90, 2.14) ***

1.70 (1.60, 1.80) ***

1.27 (1.21, 1,34) ***

Reference

<0.001

Medical service expenditure, 1000 NT$c

 Ambulatory cared

  Outpatient services

0.77 (0.66, 0.90) **

0.85 (0.73, 0.99) *

0.93 (0.84, 1.04)

Reference

<0.001

  Preventive care

0.74 (0.65, 0.86) **

0.92 (0.73, 1.05)

0.88 (0.80, 0.97)*

Reference

<0.001

  Dental services

0.71 (0.54, 0.94) *

0.77 (0.61, 0.97)*

0.88 (0.75, 1.05)

Reference

0.004

  Emergency

1.42 (1.10, 1.83)**

1.53 (1.19, 1.96)***

1.37 (1.14, 1.64)***

Reference

<0.001

 Hospitalization

2.24 (1.63, 3.07) ***

2.05 (1.48, 2.83) ***

1.27 (1.01, 1.58)*

Reference

<0.001

Total medical expenditure

1.51 (1.22, 1.87) ***

1.37 (1.11, 1.70) **

1.12 (0.96, 1.29)

Reference

<0.001

  1. aThe high-risk group comprises participants with a lower SMMI (<11.4 kg/m2 for men and 8.50 kg/m2 for women). The low-risk group comprises participants with a normal SMMI
  2. bOutcome was assessed using GLMs with Poisson distribution
  3. cNT$, with an exchange rate of approximately NT$31 to US$1 in 2017
  4. dOutcome was assessed using GLMs with gamma distribution
  5. Models were adjusted for age, gender, region of residence, ethnicity, education level, living status, self-reported financial status, household income (NT$/mo), perceived health status, ADL, CCI, energy (kcal/d), protein (g/d), and physical activity (<1.5 MET/day or ≥ 1.5 MET/day)
  6. * P < 0.05, ** P < 0.01, *** P < 0.001