This FRENCH language article reports on a survey conducted to evaluate suicidal tendencies & depression among 613 college students in Quebec. Results showed that 65% of male students & 57% of female students seriously had thought of suicide at least once while 10% of males & 14% of females had made at least one serious attempt. Depression scores & drug or alcohol abuse were related to suicidality. Students cited solitude, loneliness & family problems as being risk factors for suicide. (5 refs.)