“…Operative site also affected the incidence of post-operative respiratory complications in our patients, with upper and lower GI procedures having similar inci dences of respiratory morbidity while her niorrhaphies and non-abdominal procedures had much lower incidences. A similar pattern was also reported in elderly patients by Mlynek et al [ 1977], In younger patients, abdom inal operations are also associated with a higher incidence of post-operative respira tory complications than non-abdominal operations, but the highest incidence of all is seen with those incisions which are closest to the diaphragm [ Wight man, 1968;Pierce and Robertson, 1977;Harman and Lillinglon, 1979], Poor pre-operative fitness, as measured by various techniques [Skinner and Pearce, 1964;Vacanti et al, 1970;Goldman et al, 1977;Rose et al, 1979;Garibaldi et al, 1981] appears to have a detrimental effect on post-operative morbidity in the elderly. In the present report, we have introduced a new measurement of fitness, based simply on the pre-operative level o f activity.…”