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Impact of Reward Options Sheet in Mail One Survey Packet on Early Response among African American Women in Oklahoma Wanda Thomas, Alicia Lincoln, MSW,MSPH, Dick Lorenz, MSPH Maternal and Child Health Service Oklahoma State Department of Health.

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Phase 4 and Phase 5 Response Rates* Overall** and African American

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Impact of Reward Options Sheet in Mail One Survey Packet on Early Response among African American Women in OklahomaWanda Thomas, Alicia Lincoln, MSW,MSPH, Dick Lorenz, MSPHMaternal and Child Health ServiceOklahoma State Department of Health


Phase 4 and Phase 5 Response Rates* Overall** and African American

*Unweighted, gross response

**African American response is included in overall response


Phase 4 and Phase 5 Response Rates* Overall** and African American

*Unweighted, gross response

**African American response is included in overall response


African American Response Trends Oklahoma PRAMS 2000-2007

Phase 4 2000-03, Phase 5 2004-08

Unweighted response rates


Reward Options Sheet

Oklahoma

PRAMS

Implemented 2006


Alternate Reward Options Sheet For Mothers of Deceased Babies


Increase early response

Increase total mail response

Increase final total response

• Reduce burden of phone phase

Test Objectives


African American women in each of four batches evenly divided alphabetically

Alphabetical division was rotated batch to batch

53 in test group (initially 57)

51 in control group (initially 56)

Methodology


Demographic Characteristics: Number of Women in Test Group and Control Group


Birthweight Stratum: Number of Women in Test Group and Control Group


Eliminated from analysis of early response:

- Women with undelivered mail 1 packets

• Eliminated from analysis of total response:

- Women with undelivered mail and no

good phone number

Women Eliminated from Analysis


Early and Total* Response Rates to Reward Options Sheet

*Total response to date available for only one batch: n=15/test & 14/control


Historic Overall Response Mode Compared to African American Test & Control Groups

African American

Overall


Historic African American Mail ResponseCompared to Test & Control Groups

African American

African American


Benefit of Early Response

  • Monetary Value

  • $1.65 - Music cd (including postage)

  • $2.32 - Chunky book (including postage)

  • $3.74 - mail two and three survey packets (combined)

  • Phone phase: interviewer salaries and phone charges

  • Surveillance Value

  • Early response may reduce recall bias

  • Participation by women who may be lost to followup

  • Improved response rates provide more valid data

  • Fewer moms in phone phase = more calls per mom


Limitations

•No guarantee that mail one survey packet

was received

•Small sample size

(little statistical significance at p value of .17)

•Unable to compare income levels as this

information is not available when sample

is drawn

•Confounding variables may exist in either

group of which we are unaware


Inclusion of the reward options sheet is effective for increased early response

Test with all women (one batch) resulted in:

25% early response among test group vs. 18%

among control group (no women eliminated)

Oklahoma now includes the rewards option sheet in the mail one survey packet for all women

Conclusions


All the women in Oklahoma who take the time to tell us about their experiences.

Oklahoma PRAMS phone staff: Helen Couch, Rebekah Rodriguez, Catherine Diepenbrock-Leu

CDC and the Oklahoma Title V Program for providing funding and support for OK PRAMS

Oklahoma State Department of Health leadership for support of the Oklahoma PRAMS project

Acknowledgements


QUESTIONS?


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