“…A variety of studies have looked into associations between WAI and sick leave, disease (14-16), lifestyle (14,(17)(18), physical activity/exercise (19)(20), quality of life (3,(21)(22), age (23)(24)(25)(26), education (27), work-related stress (27)(28)(29)(30)(31), musculoskeletal disorders (32)(33)(34)(35), work-family conflicts (35), changing employer or leaving the profession (36)(37)(38), night and shift work (22,39), fatigue (40), current work ability (41)(42)(43), menopause (44), migration (45), ethnicity (46), physical work capacity (47), psychosocial hazard (48), successful aging strategies (26,(49)(50)(51), individual factors (4, 52-54), work-related factors, working conditions and workload (4,14,52,54), work injury (52), and job ...…”