| rectal distension | 0.86 | Five minute rest periods separated each rectal distension. | ||
| abdominal distension | 0.33 | Two days before admission he noted abdominal distension and began to hiccup. | ||
| gaseous distension | 0.26 | A plain abdominal radiograph showed gaseous distension of the transverse colon with mucosal oedema. |