Refining assessment of contraceptive use in the past year in relation to risk of unintended pregnancy

Understanding contraceptive failure: an analysis of qualitative narratives

Most American women wanting to avoid pregnancy use contraception, yet contraceptive failures are common. Guided by the Health Belief Model (HBM), we conducted a secondary qualitative analysis of interviews with women who described experiencing a contraceptive failure (n=69) to examine why and how this outcome occurs. We found three primary drivers of contraceptive failures (health literacy and beliefs, partners and relationships, and structural barriers), and we identified pathways through which these drivers led to contraceptive failures that resulted in pregnancy. These findings have implications for how individuals can be better supported to select their preferred contraception during clinical contraceptive discussions.

Contraceptive Method Use by Rural-Urban Residence among Women and Men in the United States, 2006 to 2017

PURPOSE

Policy and reproductive health practice changes in the past decade have affected use of different contraceptive methods, but no study has assessed contraceptive method use over this time by rural-urban residence in the United States.

METHODS

We used female and male respondent data (2006-2017) from the National Survey of Family Growth (n = 29,133 women and n = 24,364 men) to estimate contraceptive method use by rural-urban residence over time and contraceptive method use by age, marital status, and parity/number of children.

RESULTS

From 2006-2010 to 2013-2017, among urban women, we found increased use of two or more methods (11% to 14%); increased use of intrauterine devices (5% to 11%), implants (0 to 2%), and withdrawal (5 to 8%); and decreased use of sterilization (28% to 22%) and pills (26% to 22%). Among rural women, we found increased use of intrauterine devices (5% to 9%) and implants (1% to 5%). We found increased withdrawal use for urban men, but otherwise no differences among men across time. In data pooled across all survey periods (2006-2017), contraceptive method use varied by rural-urban residence across age, marital status, and parity/number of children.

CONCLUSIONS

In a nationally representative sample of reproductive age women and men, we found rural-urban differences in contraceptive method use from 2006-2010 to 2013-2017. Describing contraceptive use differences by rural-urban residence is necessary for tailoring reproductive health services to populations appropriately.

Understanding the extent of contraceptive non-use among women at risk of unintended pregnancy, National Survey of Family Growth 2011-2017

Objective

To describe characteristics of U.S. contraceptive non-users to inform tailored contraceptive access initiatives.

Study design

We used National Survey of Family Growth data from 2011 to 2017 to identify characteristics of contraceptive non-users compared to other women ages 15–44 at risk for unintended pregnancy. We also examined reasons for not using contraception by when non-users expected their next birth. We calculated unadjusted and adjusted prevalence ratios using two definitions of contraceptive non-use: (1) contraceptive non-use during the interview month, and (2) a more refined definition based on contraception use during the most recent month of sexual intercourse and expectation of timing of next birth. We considered p-values < 0.05 statistically significant.

Results

Approximately 20% (n = 2844) of 12,071 women at risk of unintended pregnancy were classified as standard contraceptive non-users. After adjusting for all other variables, non-users were more likely to be low-income, uninsured, never married, expect a birth within 2 years, and have zero or one parity. The top reasons for contraceptive non-use were not minding if they got pregnant (22.6%), worried about contraceptive side effects (21.0%), and not thinking they could get pregnant (17.6%). After applying the more refined non-user definition, we identified 5.7% (n = 721) of women as non-users; expecting a birth within 2–5 years and having a parity of one were associated with non-use after adjustment of all other factors.

Conclusion

Our more refined definition of non-users could be used in future studies examining the causes of unintended pregnancy and to inform programmatic interventions to reduce unintended pregnancy.

Implications

Describing contraceptive non-users and reasons for contraceptive non-use could help us better understand reasons for unintended pregnancy and inform tailored contraceptive access initiatives.