Incidence trends for each human papillomavirus-related cancer-type among women in Norway 1953–2015. Incidence trends for each human papillomavirus-related cancer-type among women in Norway 1953–2015. Blue points denote observed age-standardised (world) incidence per 100 000 women-years. Lines denote the best-fitting trend line, and red points the joinpoints, from joinpoint regression analyses. SCC, squamous cell carcinoma. Bo T Hansen et al. BMJ Open 2018;8:e019005 ©2018 by British Medical Journal Publishing Group