Impairment due to constipation n Mean ± SD p-value
Work activity      
Absenteeism, % of work time      
Baseline
After 2 weeks with lubiprostone
Change from baseline
14
11
11
0
0
0
p=1
Presenteeism, % impairment
Baseline
After 2 weeks with lubiprostone
Change from baseline
14
11
11
27.1 ± 33.5
17.3 ± 27.7
0.9 ± 5.1
p=0.297
Overall productivity loss, %
Baseline
After 2 weeks with lubiprostone
Change from baseline
14
11
11
27.1 ± 33.5
17.3 ± 27.7
0.9 ± 5.1
p=0.297
Non-work activity, % impairment
Baseline
After 2 weeks with lubiprostone
Change from baseline
35
28
28
38.6 ± 34.0
30.4 ±29.3
14.3 ± 21.6
p=0.002
Table 4: Results of the Work Productivity and Activity Impairment Questionnaire analyses