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Table 2 Mean (standard deviation) lost productivity due to gastroesophageal reflux disease (GERD), as measured using the Work Productivity and Impairment Questionnaire for patients with GERD (WPAI-GERD), by country of residence

From: Impact of gastroesophageal reflux disease on work absenteeism, presenteeism and productivity in daily life: a European observational study

   Germany Greece Norway Spain Sweden UK
Absenteeism, hours/week n 187 249 233 131 196 132
   3.2 (8.8) 1.5 (5.1) 0.9 (4.7) 2.1 (7.1) 0.7 (3.4) 0.4 (2.7)
Presenteeism (work hours lost/week due to reduced productivity while working) n 158 252 231 122 178 118
   5.7 (8.6) 5.1 (7.7) 6.7 (6.2) 4.7 (8.2) 7.7 (7.5) 3.5 (6.6)
Lost work productivity score* n 189 248 231 120 196 131
   16.7 (22.6) 12.3 (17.3) 18.1 (16.9) 17.1 (26.9) 17.0 (16.1) 9.1 (16.4)
  1. *[(hours absent from work + percent reduced productivity while working multiplied by hours actually worked)/(hours absent from work + hours actually worked)] multiplied by 100.
  2. Sample sizes differ for each measure due to missing data, as a small number of patients completed the WPAI-GERD questionnaire (and were therefore assumed to be employed) but did not record their professional details.