Evaluation of the Pregnancy Risk Assessment Monitoring System (PRAMS) as a Surveillance System for Pregnancy Intention By: Olivia Sappenfield, MPH Office of Data Translation Bureau of Family Health and Nutrition Massachusetts Department of Public Health Unintended Pregnancy All pregnancies wanted later or not at all Association with poor birth outcomes including preterm birth, low birth weight (LBW), and small for gestational age (SGA)1-4 Association with delayed and inadequate prenatal care, continued drinking, continued smoking during pregnancy1-4 Represent about ½ of all births nationally Cost more than $9 billion annually5,6 Risk Factors Maternal race/ethnicity, maternal age, maternal education, household income, marital status Partner’s intention, desirability of partner, number of partners, contraceptive use Pregnancy Intention in Massachusetts State and Title V priority: “Support reproductive and sexual health by improving access to education and services” Traditionally reported using Behavioral Risk Factor Surveillance System (BRFSS) State priority measure: “The percentage of pregnancies among women age 18 and over that are intended ” Pregnancy intention asked every other year Queries about pregnancies up to 5 years ago PRAMS offers a valuable alternative Data used to inform the Title V Block Grant and reports Queries about pre-pregnancy contraceptive use PRAMS Population-based data on maternal attitudes and behaviors before, during, and shortly after pregnancy Sampled from birth certificate file Data collection began in 2007 80 questions (54 core, 16 standard, and 10 MAspecific) Includes a mail and phone phase Administered 2-6 months postpartum English and Spanish surveys only Methods Adapted CDC’s “Updated guidelines for evaluating public health surveillance systems” PRAMS stakeholder surveys Initially developed for infectious disease surveillance systems Usefulness and acceptability of PRAMS to monitor pregnancy intention PRAMS staff surveys Analytical comparison of BRFSS and PRAMS Dependent variable: pregnancy intention Independent variables: maternal age, maternal race/ethnicity, maternal education, marital status, and household income Methods Continued Pregnancy intention definition: Unintended: wanted later or not at all Intended: wanted then or sooner PRAMS question: Thinking back to just before you got pregnant with your new baby, how did you feel about becoming pregnant? BRFSS questions: 1) Have you been pregnant in the last 5 years 2) Thinking back to your last pregnancy, just before you got pregnant, how did you feel about becoming pregnant? Chi-square tests to determine similarity of population from year to year Inability to link data to assess sensitivity and PPV Confidence interval overlap, means no significant difference Results Table 1. Descriptive characteristics of Massachusetts women (PRAMS 2008/2010, n= 2877; BRFSS 2008/2010, n=683)1 PRAMS 08/10 BRFSS 08/10 n % n % 2887 100.0% 683 100.0% Intended 1885 69.0% 500 80.0% Unintended 1002 31.1% 183 20.0% 18-24 years 621 20.9% 54 5.5% 25-34 years 1680 57.6% 290 40.3% 35-44 years 586 21.6% 315 54.2% NH White2 861 69.0% 462 78.3% NH Black2 634 8.7% 45 4.8% Hispanic2 703 14.0% 122 10.3% NH Asian/Pacific Islander (PI)2 604 8.3% 32 6.6% Overall Pregnancy Intention Maternal Age Maternal Race/Ethnicity 1Weighted Percents 2non-Hispanic Table 1 Continued PRAMS 08/10 BRFSS 08/10 n % n % <High School 342 8.9% 52 4.1% High School 732 25.7% 131 16.9% Some College 623 19.6% 163 21.2% 1178 45.9% 337 57.9% Married 1777 66.3% 445 77.5% Not married 1110 33.7% 238 22.6% <185% Federal Poverty Level (FPL) 1257 38.3% 220 26.4% 185+% FPL 1346 61.7% 359 73.6% Maternal Education College or higher Marital Status Household Income 1Weighted Percents Table 2. Descriptive characteristics of sample population by pregnancy intention (PRAMS 2008/2010, n= 3022; BRFSS 2008/2010, n=683 )1 PRAMS 2008/2010 Intended n Overall % 1885 100.0% BRFSS 2008/2010 Unintended n % 1002 100.0% Intended n % 500 100.0% Unintended n % 183 100.0% Maternal Age 18-24 years 267 12.9% 354 38.7% 19 1.9% 35 19.8% 25-34 years 1166 61.8% 514 48.1% 200 40.4% 90 40.0% 35-44 years 452 25.3% 134 13.2% 261 57.7% 54 40.2% Maternal Race/Ethnicity NH White2 630 72.8% 231 60.6% 366 81.6% 96 65.4% NH Black2 338 6.6% 296 13.4% 25 3.5% 20 10.2% Hispanic2 415 12.0% 288 18.6% 72 8.3% 50 18.3% NH Asian/PI2 446 8.6% 158 7.5% 23 6.7% 9 6.2% 1Weighted Percents 2non-Hispanic Table 2 Continued PRAMS 2008/2010 Intended n Overall % 1885 100.0% BRFSS 2008/2010 Unintended n % 1002 100.0% Intended n % Unintended n 500 100.0% 183 % 100.0% Maternal Education <High School 197 7.1% 145 12.7% 28 2.7% 24 9.7% High School 400 21.5% 332 35.0% 83 14.1% 48 28.0% Some College 344 16.3% 279 26.9% 111 20.4% 52 24.1% College≤ 934 55.1% 244 25.5% 278 62.8% 59 38.2% 1354 77.4% 423 41.6% 381 85.5% 64 45.2% 531 22.6% 579 58.4% 119 14.5% 119 54.8% <185% FPL 666 28.8% 591 59.7% 131 21.5% 89 48.1% 185+% FPL 1047 71.3% 299 40.3% 305 78.5% 54 51.9% Marital Status Married Not married Household Income 1Weighted Percents Table 3. Comparison of unintended pregnancy prevalence among MA PRAMS and BRFSS respondents (PRAMS 2008/2010, n= 1019; BRFSS 2008/2010, n=183 )1 PRAMS 2008/2010 BRFSS 2008/2010 Unintended Pregnancy Unintended Pregnancy % 95% CI % 95% CI Maternal Age 18-24 years 57.5% 51.8% 63.0% 71.9% 49.2% 87.2% 25-34 years 26.0% 23.3% 28.8% 19.8% 14.6% 26.3% 35-44 years 19.0% 15.2% 23.5% 14.8% 10.6% 20.4% NH White 27.2% 24.1% 30.6% 16.7% 12.7% 21.8% NH Black 47.6% 43.8% 51.5% 42.3% 24.5% 62.3% Hispanic 41.0% 37.5% 44.7% 35.6% 23.7% 49.6% NH Asian/PI 28.0% 24.5% 31.8% 19.0% 8.2% 38.2% Maternal Race/Ethnicity 1Weighted Percents 2non-Hispanic Table 3 Continued PRAMS 2008/2010 BRFSS 2008/2010 Unintended Pregnancy Unintended Pregnancy % 95% CI % 95% CI Maternal Education <High School 44.5% 37.3% 52.0% 47.8% 24.4% 71.8% High School 42.4% 37.3% 47.7% 33.3% 22.2% 46.5% Some College 42.6% 37.4% 48.1% 22.7% 15.1% 32.7% College or higher 17.3% 14.7% 20.2% 13.2% 9.5% 18.0% Married 19.5% 17.3% 21.9% 11.7% 8.4% 15.9% Not married 53.8% 49.5% 58.1% 48.6% 38.8% 58.5% <185% FPL 48.0% 43.9% 52.0% 33.7% 25.1% 43.6% 185%+ FPL 20.1% 17.5% 23.0% 13.0% 9.3% 17.9% Marital Status Household Income 1Weighted Percents Other Attributes Flexibility Timeliness Response rate consistently above 65% Question response rate between 97.5% and 95% Representativeness 2-6 months postpartum vs. up to 5 years postpartum Women surveyed postpartum – recall bias Data Quality PRAMS conducted annually States able to include state-specific questions CDC changes to core questions (Phases) Can adapt to add questions on emerging issues (e.g. H1N1) Population-based, oversamples by race/ethnicity Deliveries ending in live birth Other Attributes: Simplicity, Acceptability, and Stability Conclusion: PRAMS is an Acceptable System for Monitoring Pregnancy Intention Considered an acceptable data source by researchers and by its study population Timely surveillance system for state-level data on postpartum women Prevalence of unintended pregnancy overlapped for all indicators except <185%FPL and certain subgroups (married, some college education, and NHW) Concern because poorer women are more at risk of unintended pregnancy Similarly represented less educated women and minority women, who are also more at risk Can provide estimates for the magnitude of morbidity associated with pregnancy intention Inform reproductive health programs Used in home-visiting programs to assist in developing reproductive life plans Strengths and Limitations of PRAMS Retrospectively collects data-recall bias Currently no “partner questions” Collects data soon after delivery Capable of detecting trends that signal changes in pregnancy intention Ability to change PRAMS questions every year Does not collect data on fetal death, spontaneous abortion, or induced abortion Live births used for family planning programs Live births used for population contraceptive need References 1. 2. 3. 4. 5. 6. D'Angelo D.V., Gilbert B.C., Rochat R.W., Santelli J.S., Herold J.M. Differences between mistimed and unwanted pregnancies among women who have live births. Perspectives on Sexual and Reproductive Health. 2004;36(5):192-7. Kost K., Landry D.J., Darroch J.E. The effects of pregnancy planning status on birth outcomes and infant care. Family Planning Perspectives. 1998;30(5):223-30.4. Sable M.R., Spencer J.C., Stockbauer J.W., et al. Pregnancy wantedness and adverse pregnancy outcomes: differences by race and medicaid status. Family Planning Perspectives. 1997;29:76-81. Shah P.S., Balkhair T., Ohlsson A., et al. Intention to become pregnant and low birth weight and preterm birth: a systematic review. Maternal and Child Health Journal. 2011;15:205-16. Finer L.B., Kost K. Unintended pregnancy rates at the state level. Perspectives on Sexual and Reproductive Health. 2011:43(2):78-87. Monea E., Thomas A. Unintended pregnancy and taxpayer spending. Perspectives on Sexual and Reproductive Health. 43(2):88-93. Questions & Comments Acknowledgements: Susan Manning, MD, MPH Emily Lu, MPH Hafsatou Diop, MD, MPH MA PRAMS Advisory Committee MA PRAMS Staff Feel free to contact me at: Olivia Sappenfield olivia.sappenfield@state.ma.us