Minor analgesic use among high-school students: indications for renal morbidity and mortality.

Reported patterns of minor analgesic use by adolescents were taken from a baseline 1973 survey, and a follow-up 1974 survey. The differences between the sexes within each year were shown to be highly significant. Trend analysis in minor analgesic use included the year-to-year comparisons, the degree of minor analgesic use, and the rate of change in this use. The trends show the long-term process of minor analgesic use, and support the cause for concern about analgesic nephropathy.