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Table 2 Characteristics of the identified studies

From: Quality appraisal of generic self-reported instruments measuring health-related productivity changes: a systematic review

Study Country Instrument Population Sampling Setting Mean age (SD) Gender (% female) Response rate (%)
Beaton [26] Canada WLQ Musculoskeletal disorders Convenience Health care 42.5 (10.1) 54% 33%
Endicott [29] USA EWPS Major depressive disorders Convenience Health care 41 (9.6) 70% N.A.
Erickson [19] USA WLQ WPSI EWPS WPAI Anxiety disorders (i) minimal-to-mild (ii) moderate-to-severe Convenience Health care (i) 37.5 (12.2) (ii) 34.2 (9.8) (i) 48.8% (ii) 75% 51%
Forst [30] USA AMA-guide Low back injuries Convenience Academy N.A. N.A. 100%
Goetzel [31] USA WPSI Allergies, respiratory infections, arthritis* N.A. Work-place 47 (N.A.) 30% N.A.
Kessler [33] USA WHO HPQ Job-related accidents-injuries (i) airline reservation agents (ii) customer service reps. (iii) executives (iv) railroad engineers Convenience Work-place (i) 30-44 (2.4) (ii) 30-44 (2.2) (iii) 45-59 (2.0) (iv) 45-59 (1.7) (i) 80.3% (ii) 47.2% (iii) 19.3% (iv) 2.4% (i) 39% (ii) 29% (iii) 50% (iv) 57%
Kessler [32] USA WHO HPQ Non-specified health status Convenience Work-place N.A. N.A. N.A.
Koopman [34] USA SPS Non-specified health status Convenience Work-place 46.5 (9.4) 47.9% 74%
Koopmanschap [24] NL PRODISQ Musculoskeletal complaints, stress factors, back complaints** Convenience Work-place N.A. N.A. N.A.
Kumar [35] USA HRPQ-D Infectious Mononucleosis Convenience Health care 19.3 (3.6) 41.9% 97%
Lerner [36] USA WLQ RA, chronic daily headache syndrome and epilepsy Convenience Health care 41.3 (11.1) 72.7% N.A.
Lerner [37] USA WLQ Osteoarthritis Convenience Health care 53.7 (7.1) 65.4% 30%
Meerding [20] NL HLQ Musculoskeletal complaints Convenience Work-place (i) 35 (N.A.) (i) 0% (i) 69%
   Q&Q (i) industrial workers (ii) construction workers    (ii) 42 (N.A.) (ii) 6% (ii) 85%
Ozminkanski [21] USA WLQ WPSI Job-related accidents-injuries Consecutive Work-place 37.77 (N.A.) 34.31% 48%
Prochaska [38] USA WBA-P Non-specified health status Convenience Work-place 47.6 (11.4) 56.8% N.A.
Reilly [39] USA WPAI Job-related accidents-injuries (i) Group 1 (ii) Group 2 Convenience Health care/Work-place (i) 37.2 (9.7) (ii) 39.4 (11.8) (i) 65.5% (ii) 60.8% 48%
Roy [28] Canada WLQ Chronic upper-extremity disorders Convenience Health care 46 (9) 53% 83%
Shikiar [40] USA HWQ Non-specified health status Convenience Work-place N.A. N.A. 45%
Stewart [43] USA WHI Non-specified health status Convenience Work-place N.A. 66% 72%
Tang [27] Canada WLQ Shoulder and elbow disorders Convenience Health care 43.3 (11.5) 42.5% 87%
Turpin [41] USA SPS Allergies, arthritis or joint pain/stiffness, asthma*** Convenience Work-place 43.2 (N.A.) 29.4% 63%
Van Rooijen [25] NL HLQ (i) Migraine (ii) spinal cord injury (iii) knee injury (iv) hip injury Convenience Data base N.A. N.A. (i) 58% (ii) 81% (iii) 76% (iv) 75%
Walker [42] USA WLQ Rheumatoid arthritis Continuously NDB 53.5 (10.5) 77% 98%
Zhang [22] UK & Ireland WPAI Rheumatoid arthritis Convenience ERAN 52.1 (10) 72% 53%
Zhang [23] UK & Ireland VOLP Rheumatoid arthritis Convenience ERAN 52 (10) 72% 81%
  1. WLQ = Work Limitations Questionnaire; EWPS = Endicott Work Productivity Scale; N.A. = Not Available; WPSI = Work Productivity Short Inventory; WPAI = Work Productivity and Activity Impairment Instrument; AMA-guide = American Medical Association-Guides; WHO HPQ = World Health Organization Health and work Performance Questionnaire; SPS = Stanford Presenteeism Scale; PRODISQ = PROductivity and Disease Questionnaire; HRPQ-D = Health-Related Productivity Questionnaire Diary; HLQ = Health and Labor Questionnaire; Q&Q = Quality and Quantity questionnaire; WBA-P = Well-Being Assessment for Productivity; HWQ = Health and Work Questionnaire; WHI = Work and Health Interview; VOLP = Valuation of Lost Productivity questionnaire; NDB = National Databank for Rheumatic Diseases ; ERAN = The Early Rheumatoid Arthritis Network.
  2. *Continued: asthma, anxiety disorders, depression, bipolar disorder, stress, diabetes, hypertension, migraine, other major headaches, coronary heart disease/high cholesterol.
  3. **Continued: dyspepsia, chronic fatigue syndrome, psoriasis, rheumatoid arthritis.
  4. ***Continued: back or neck disorder, breathing disorder, depression, anxiety or emotional disorder, diabetes, hearth or circulatory problem, migraine/chronic headaches, stomach or bowel disorder.