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Table 4 Multivariate analysis between quality of life from standard TTO method and demographic- socioeconomic-clinical data was estimated by ordinary least square methods.

From: Measuring melasma patients' quality of life using willingness to pay and time trade-off methods in thai population

Variable

Coefficient

t-Statistic

p-value

C

0.912

9.44

0.000

AGE

1.78E-05

0.009

0.993

EDU

0.034

1.030

0.307

OCC

0.025

0.706

0.483

MASI

0.000

0.251

0.803

TR

0.001

0.525

0.601

MS

0.013

0.387

0.700

INC

1.40E-07

0.238

0.813

  1. Dependent Variable: TTY.
  2. R square: 0.028 Adjusted R square: -0.069
  3. F-statistic: 0.288, p-value 0.956
  4. Where:
  5. TTY: Quality of life obtaining from standard TTO method
  6. AGE: Age of patient (years)
  7. EDU: Dummy variable which 1 if education level is bachelor or higher level and 0 otherwise
  8. OCC: Dummy variable which 1 = economic inactive occupation (housewife, pensioner, unemployed) and 0 = otherwise
  9. MASI: Score of MASI
  10. TR: Duration of treatment (years)
  11. MS: Dummy variable which 1 if marital status = married and 0 = otherwise
  12. INC: Monthly personal income (Baht)