“…THE FIRST ATTACK OF ULCERATIVE COLITIS This study confirms that the mortality of this disease is always greatest during the year of the first attack (Hurst, 1935;Rice-Oxley and Truelove, 1950;Sloan, Bargen, and Gage, 1950;Demole, 1956;Banks, Korelitz, and Zetzel, 1957;Kellock and White, 1957;Nefzger and Acheson, 1963;Edwards and Truelove, 1963). This high mortality in the year of the first attack is understandable, because this is the only year in which all the patients surveyed have an attack of colitis.…”