ArticleInfectious diseases and therapy2026
The Impact of Influenza on Health-Related Quality of Life, Work Productivity, and Activity Impairment Among Symptomatic US Patients with Influenza.
Article in Infectious diseases and therapy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionEvidence on the impact of influenza on health-related quality of life (HRQoL) and work productivity and activity impairment (WPAI) remains limited. This study evaluated changes in the EuroQol Visual Analogue Scale (EQ-VAS), EuroQol Utility Index (EQ-UI), absenteeism, presenteeism, work productivity loss, and activity impairment over 1 month during the high-severity 2024-2025 influenza season in the USA.
methodsSymptomatic adults (≥ 18 years) with a positive influenza test at ambulatory care clinics within a national US retail pharmacy chain (10/24/2024-4/15/2025) and symptom onset ≤ 4 days of positive test were included. HRQoL was assessed on days 1-7, 10, 14, and week 4 and WPAI on days 1, 7, 14, and week 4. Mixed models for repeated measures estimated mean changes and standard error (SE) from baseline, adjusting for relevant covariates.
resultsThe analysis included 724 adults (mean [standard deviation (SD)] age: 42.0 [13.0] years; 74.2% female). HRQoL declined following infection: EQ-VAS decreased by 26.6 points (SE 0.9) on day 1 (p < 0.001) and 3.8 (0.8) on day 10 (p < 0.001), while EQ-UI scores decreased by 0.20 (0.01) on day 1 (p < 0.001) and 0.02 (0.01) on day 7 (p < 0.001). Compared with baseline, absenteeism rose by 58.3% (1.9) on day 1 and 34.9% (1.9) on day 7 (p < 0.001); presenteeism increased by 59.2% (2.0), 43.2% (2.0), and 8.8% (1.7) on days 1, 7, and 14 respectively (p < 0.001). Work productivity loss rose by 76.3% (1.7) on day 1, 55.5% (2.1) on day 7, and 8.1% (1.8) on day 14 (p < 0.001). Activity impairment increased by 62.6% (1.6) on Day 1, 43.6% (1.8) on day 7, and 6.6% (1.6) on day 14 (p < 0.001).
conclusionsInfluenza was associated with marked declines in HRQoL, productivity, and daily functioning in symptomatic outpatients, highlighting the importance of patient-reported outcomes in capturing influenza's real-world burden.
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