Table 3.

Results of the Work Productivity and Activity Impairment Questionnaire analyses

Impairment due to dry eye	n	Mean ± SD	P
Work activity
Absenteeism, % of work time
Baseline, with habitual drops	22	1.4 ± 5.8
After 4 weeks with study drops	19	0.1 ± 0.5
Change from baseline	18a	0.1 ± 0.5	0.330
Presenteeism, % impairment
Baseline, with habitual drops	25	36.8 ± 26.9
After 4 weeks with study drops	22	29.1 ± 24.3
Change from baseline	22	−5.0 ± 20.4	0.260
Overall productivity loss, %b
Baseline, with habitual drops	22	36.3 ± 26.4
After 4 weeks with study drops	19	22.7 ± 18.3
Change from baseline	18a	−7.2 ± 19.4	0.140
Non-work activity, % impairment
Baseline, with habitual drops	48	40.0 ± 27.1
After 4 weeks with study drops	46	27.6 ± 25.1
Change from baseline	45a	−11.3 ± 26.4	0.006

Notes:

^aPaired responses; one participant responded at week 4 but not at baseline;

^bfor participants who provided data for both presenteeism and absenteeism.

Abbreviation: SD, standard deviation.