“…The prevalence of occasional urinary in continence has been found to vary from 5 to 49% among females 65 or over and from 6 to 17 % among males 65 or over [Brocklehurst et al, 1968;Olin, 1971;Feneley et al, 1979;Thomas zt al., 1980;Vetter et al, 1981;Yarnell et al, 1982]. The prevalence figures of regular incontinence vary between 2 and 7% for females 65 or over and between 2 and 5% for males 65 or over [Sourander, 1966;Milne et al, 1972;Akhlar et al, 1973;Vetter et al, 1981], It is widely suggested that the prevalence of incontinence tends to increase with age in the elderly population [ Yarnell and St. Leger, 1979;Thomas et al, 1980;Vetter et al, 1981], although some reports have reached differing conclusions [Brocklehurst et al, 1968;Milne et al, 1972], Among the very aged, urinary inconti nence has been reported by some workers to be more common among females [ Thomas et al, 1980;Vetter et al, 1981], while others do not lend support to these conclusions [Yar nell and St. Leger, 1979] (table I).…”