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. 2014 May 6;55(5):2993–3002. doi: 10.1167/iovs.13-12660

Table 2.

Work Limitations Questionnaire QoL Measures (Per-Protocol Population With LOCF)*

Variable
Difluprednate 0.05%
Prednisolone Acetate 1%
P Value
Time management subscale score
 Baseline, mean 25.7 (n = 33) 30.7 (n = 34)
 Follow-up, mean 11.2 (n = 25) 8.6 (n = 24)
 Mean change −16.6 (n = 23) −25.1 (n = 21) 0.240
Physical subscale score
 Baseline, mean 15.6 (n = 36) 18.2 (n = 35)
 Follow-up, mean 5.8 (n = 26) 18.0 (n = 24)
 Mean change −8.8 (n = 25) 3.0 (n = 22) 0.087
Mental-interpersonal subscale score
 Baseline, mean 19.5 (n = 34) 23.2 (n = 34)
 Follow-up, mean 12.0 (n = 25) 7.1 (n = 25)
 Mean change −8.7 (n = 23) −12.1 (n = 21) 0.326
Output subscale score
 Baseline, mean 17.6 (n = 34) 23.8 (n = 34)
 Follow-up, mean 12.3 (n = 25) 8.8 (n = 25)
 Mean change −4.1 (n = 23) −12.1 (n = 21) 0.312
Loss index
 Baseline, mean 0.054 (n = 31) 0.068 (n = 32)
 Follow-up, mean 0.032 (n = 25) 0.027 (n = 23)
 Mean change −0.023 (n = 22) −0.039 (n = 19) 0.449
Percentage productivity score
 Baseline, mean 5.11 (n = 31) 6.33 (n = 32)
 Follow-up, mean 3.03 (n = 25) 2.65 (n = 23)
 Mean change −2.20 (n = 22) −3.61 (n = 19) 0.476
*

The WLQ resulted in four composite subscores on time management, physical, mental-interpersonal, and output subscales. Subscale scores range from 0 (limited none of the time) to 100 (limited all of the time), and they indicate the percentage of time in the prior 2 weeks that the respondent was limited in performing the specific dimension of a job. The WLQ index is a weighted sum of scores from the four WLQ subscales. The WQL productivity loss score was based on the index score and indicates the percentage decrement in work output because of health problems.