Table 4.

Estimated frequency of routine cervical screening among women undergoing screening within a 5-year perioda

AgeScreening intervals (as a percentage of screened women at each age)
U.S. 5-yr rate of hysterectomybper 100 women
N1 yr2 yrs3 yrs4 yrs≥5 yrs
15–1995244.519.211.45.019.90.2
20–2474053.118.57.55.815.00.4
25–291,70952.519.08.88.111.72.5
30–395,43235.922.914.710.416.04.2
40–497,90031.025.415.69.119.05.6
50–596,73335.024.313.87.819.23.7
60–693,38224.721.413.28.931.82.0
70–791,57015.314.79.45.055.61.5
80+2749.16.15.94.774.21.1
Overallc35.722.013.08.520.93.5
  • a Results reflect the estimated time to a subsequent Pap smear among women with negative routine cervical smears and include women undergoing hysterectomy during the follow-up period.

  • b Estimates based on data from the National Hospital Discharge Survey.

  • c Overall percentages across all ages are age-adjusted to the 1998 U.S. female population.