Table 4

Work productivity and activity impairment survey measures by study visita
Measure Baseline 6-week study visit 12-week study visit 24-week study visit Mean 24-week change from baseline Pvalueb
Absenteeism (%) 8.5 (17.78) 7.8 (16.36) 4.9 (14.00) 5.1 (14.03) −3.6c .035
Presenteeism (%) 36.4 (23.54) 32.3 (25.09) 32.2 (26.12) 29.9 (27.99) −6.9c .002
Work productivity loss (%) 40.8 (25.07) 35.6 (27.67) 33.6 (26.76) 31.0 (28.96) −10.3c <.001
Activity impairment (%) 51.5 (27.64) 45.7 (26.86) 42.3 (27.67) 40.2 (29.80) −11.1c <.001

aPatients currently employed included in analysis (N = 145); values per study visit shown are means (SD); mean 24-week change from baseline values from repeated-measures analysis.

bP value indicates significant change from baseline and 24-week study visit if < .05; obtained from repeated-measures analysis.

cIndicates improvement in health.

Abrams et al.

Abrams et al. BMC Complementary and Alternative Medicine 2013 13:146   doi:10.1186/1472-6882-13-146

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