• The causal role of smoking on the risk of hip or knee replacement due to primary osteoarthritis: a Mendelian randomisation analysis of the HUNT study 

      Johnsen, Marianne Bakke; Vie, Gunnhild Åberge; Winsvold, Bendik K S; Bjørngaard, Johan Håkon; Åsvold, Bjørn Olav; Gabrielsen, Maiken Elvestad; Pedersen, Linda Margareth; Hellevik, Alf Inge; Langhammer, Arnulf; Furnes, Ove; Flugsrud, Gunnar B; Skorpen, Frank; Romundstad, Pål Richard; Storheim, Kjersti; Nordsletten, Lars; Zwart, John-Anker (Peer reviewed; Journal article, 2017-06)
      Objective: Smoking has been associated with a reduced risk of hip and knee osteoarthritis (OA) and subsequent joint replacement. The aim of the present study was to assess whether the observed association is likely to be ...