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Table 1 Patients’ baseline demographic and diabetes-related information

From: Item reduction and validation of the Chinese version of diabetes quality-of-life measure (DQOL)

  Study sample (N = 2886) Validation sample (N = 2286a) P-valueb
Age mean (SD), years 61.15 (11.42) 61.84 (11.25) 0.030
Female 1607 (55.68) 1269 (55.51) 0.910
Diabetes duration mean (SD), years 7.94 (6.75) 7.69 (6.33) 0.174
Retired 1850 (64.10) 1544 (67.54) 0.010
Used insulin in the last 6 months 467 (16.18) 476 (20.82) < 0.001
Controlled diet 2580 (89.40) 2036 (89.06) 0.718
EQ-5D-3 L index mean (SD) 0.89 (0.14) 0.89 (0.13) 0.999
EQ-ED VAS mean (SD) 72.71 (15.46) 73.00 (15.48) 0.503
DQOL score mean (SD)c 2.07 (0.38) 2.07 (0.39) 0.999
  1. The values presented are numbers (percentage) unless otherwise stated
  2. aA total of 2542 patients finished the last round follow-up at the year end. Only observations with no missing data on the EQ-5D-3L and DQOL questions were included in the validation sample
  3. bT-test for mean and Chi-square test for frequency
  4. cThe DQOL score was calculated from the mean of the 46 items
  5. SD Standard deviation; VAS Visual analogue scale; DQOL Diabetes quality-of-life measure