Table 5.

Age of Periodic Survey Respondents, 1988–1992

Age1988*1989199019911992
MenWomenMenWomenMenWomenMenWomenMenWomen
Average age47.443.247.742.446.541.246.240.145.839.9
Median age45.041.046.041.045.040.045.038.044.038.0
25th percentile39.036.040.036.039.035.038.034.038.034.0
75th percentile55.048.055.047.054.045.054.045.053.044.0
n1589592182471829691311106352817921020
(% of total)(72.8)(27.1)(71.8)(28.2)(69.4)(30.6)(66.8)(33.2)(63.7)(36.3)
t8.3, P < .00113.1, P < .00118.2, P < .00123.8, P < .00116.9, P < .001
  • * This question was asked on two of four 1988 questionnaires.