Table 4.
Comparison of response rates by state and type of contact, PRAMS, 1996–2001
Statistically significant (p < 0.05) increasing or decreasing trend over time period from 1996 to 2001.
Trend analysis not conducted on follow-up mail response. Florida, Washington, and West Virginia did not send a third mailing in 1996 through 2001.
Response rate represents the percentage of all women in the sample who participated. Rates by type of contact may not total to overall rate due to rounding.
Contact rate represents the percentage of women who were contacted, regardless of whether they participated.
Cooperation rate represents the percentage of contacted women who participated.
Alaska conducted telephone follow-up in 1997 through 2001, but not in 1996. The Alaska telephone response trend analysis was conducted on years 1997–2001.
New York excludes New York City.
Oklahoma breakout of mail information unavailable in 1996.
Simple average over states. Mail 1 and follow-up mail response rate averages exclude Oklahoma.