Contraceptive choices of overweight and obese women in a publically funded hospital: possible clinical implications

Best Practice Contraception Care for Women with Obesity: A Review of Current Evidence

The prevalence of obesity among females of reproductive age is increasing globally. Access to the complete range of appropriate contraceptive options is essential for upholding the reproductive rights of this population group. People with obesity can experience stigma and discrimination when seeking healthcare, and despite limited evidence for provider bias in the context of contraception, awareness for its potential at an individual provider and health systems level is essential. While use of some hormonal contraceptives may be restricted due to increased health risks in people with obesity, some methods provide noncontraceptive benefits including a reduced risk of endometrial cancer and a reduction in heavy menstrual bleeding which are more prevalent among individuals with obesity. In addition to examining systems-based approaches which facilitate the provision of inclusive contraceptive care, including long-acting reversible contraceptives which require procedural considerations, this article reviews current evidence on method-specific advantages and disadvantages for people with obesity to guide practice and policy.

Female Body Mass Index and the election of a Long-Acting Reversible Contraception for the first time

OBJECTIVE

We evaluated Brazilian women with different body mass index (BMI, kg/m² ) values who were switching from a short-acting reversible contraceptive (SARC) to a long-acting reversible contraceptive (LARC) method in relationship to the reasons reported for switching and the LARC method chosen.

METHOD

We analyzed retrospective data from 1,508 women aged 18-49 years who chose a LARC for the first time. The variables were sociodemographic, BMI, SARC in use, the reason given for switching, the chosen LARC [copper intrauterine device (Cu-IUD), levonorgestrel (52mg) intrauterine system or etonorgestrel implant], and expectations of the LARC. We used the Chi-square, Mann-Whitney and Kruskal-Wallis tests to compare BMI groups. The significance level adopted was 5%.

RESULTS

The obesity group, 320 women (21.2%), reported weight gain (P <0.000) and fear of pregnancy (P = 0.004) as the most frequent reasons for switching, while the normal weight group, 637 women (42.2%), reported more loss of libido (P <0.000) and other personal complaints (P = 0.002). The IUD was chosen by 851 women (56.6%) and significantly by the largest number of obese women.

CONCLUSION

Women in different BMI categories report different reasons for switching from SARC methods and elect different LARC methods for contraception.

Women in larger bodies' experiences with contraception: a scoping review

Background

As the prevalence of obesity increases and the age of onset decreases, more women of reproductive age will be living in larger bodies. Research on weight-related efficacy and safety has informed clinical guidelines for routine and emergency contraceptive use by women with a higher body mass index; however, patient perspectives are needed to understand women in larger bodies’ experiences with contraception and contraceptive care. This scoping review summarizes the literature on women in larger bodies’ experiences with contraception with the goal of gaining a better understanding of the nature of these experiences and identifying gaps in the existing research.

Methods

Following Arksey and O’Malley’s framework, a scoping review of the literature was conducted. Four databases (PubMed, PsycINFO, SCOPUS, and CINAHL) were searched for peer-reviewed, empirical articles published in English between 2010 and 2020, with a focus on North America, Europe, Australia, and New Zealand. Data were summarized by identifying key themes in the reviewed literature.

Results

Twenty-nine articles meeting the eligibility criteria were reviewed. The literature was predominantly quantitative (n = 27), with only one qualitative study and one systematic review, respectively. Five themes were identified, including (1) use of contraception among women in larger bodies; (2) knowledge, attitudes towards and beliefs about contraception; (3) contraceptive (dis)satisfaction among women in larger bodies; (4) contraceptive counseling; and (5) barriers to contraception. The findings revealed that women in larger bodies may have unmet contraceptive care needs. Despite many articles addressing the need to improve contraceptive counseling for women in larger bodies (n = 26), few explored how women felt about their care (n = 2). Finally, only two articles focused on emergency contraception, indicating a need for further research.

Conclusion

This scoping review emphasizes the pressing need for qualitative research to explore women in larger bodies’ experiences with routine and emergency contraception, as well as receiving contraceptive counseling and care. Future research exploring the lived experiences of women in larger bodies is necessary to better characterize their contraceptive needs and identify avenues to improve patient care.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12978-021-01139-2.

As obesity becomes more prevalent, more women of reproductive age will be living in larger bodies. This review highlights what is known about women in larger bodies’ experiences with contraception and suggests where future research is needed. We searched four databases for papers published in English from 2010 to 2020. Our review included 29 articles. Nearly all of the studies were quantitative, with one qualitative study and one review. Most articles talked about contraceptive use, but few of them included emergency contraception. Some papers highlighted women’s knowledge and opinions about contraception, whereas others talked about their contraceptive (dis)satisfaction. Many articles discussed contraceptive counseling. Finally, some papers considered potential barriers to contraception. Our findings suggest that women in larger bodies have unmet contraceptive needs. Notably, this review aimed to focus on patient experiences but women’s voices were rarely represented. Future qualitative research on women’s lived experiences will provide a better understanding of women in larger bodies’ contraceptive needs and suggest how care can be improved.

Pregnancy Intention and Contraceptive Use among Women by Class of Obesity: Results from the 2006-2010 and 2011-2013 National Survey of Family Growth

OBJECTIVE

Conflicting research findings on the association of obesity and pregnancy intention may be due to their collective definition of obesity at a body mass index of 30 kg/m² or greater. However, obese women with a BMI of 40 kg/m² or greater may be both behaviorally and clinically different from obese women with a lower BMI. This study reexamines this relationship, stratifying by class of obesity; the study also explores variations in contraceptive use by class of obesity given their potential contribution to the incidence of unintended or unwanted pregnancy.

METHODS

This study combined data from the 2006 through 2010 and 2011 through 2013 US National Survey of Family Growth. Pregnancy intention (intended, mistimed, unwanted) and current contraceptive use (no method, barrier, pill/patch/ring/injection, long-acting reversible contraceptive, sterilization) were compared across body mass index categories: normal (18.5-24.9 kg/m kg/m²), overweight (25.0-29.9), obese class 1 (30.0-34.9 kg/m²), class 2 (35.0-39.9 kg/m²), and class 3 (≥40 kg/m², severe obesity). Weighted multinomial logistic regressions were refined to determine independent associations of body mass index class and pregnancy intention, as well as contraceptive method, controlling for demographic, socioeconomic, and reproductive factors.

RESULTS

Body mass index data were available for 9,848 nonpregnant, sexually active women who reported not wanting to become pregnant. Women with class 3 obesity had significantly greater odds of mistimed (adjusted odd ratio [aOR], 1.67; 95% confidence interval [CI], 1.02-2.75) or unwanted (aOR, 1.96; 95% CI, 1.15-3.32) pregnancy compared with normal weight women. Women with class 2 or 3 obesity were more likely to not be using contraception (aOR, 1.53-1.62; 95% CI, 1.04-2.29). Although women with class 2 obesity were more likely to be using long-acting reversible contraceptive methods and sterilization over short-acting hormonal methods (aOR, 1.67; 95% CI, 1.08-2.57; aOR, 2.05; 95% CI,1.44-2.91), this association was not observed among women with class 3 obesity.

CONCLUSIONS

Women with class 3 obesity are at greater risk of unintended pregnancy and are less likely to be using contraception than normal weight women. Whether these findings are related to patient and/or provider barriers that are not as visible among women with class 1 and class 2 obesity warrants further investigation.

Does body mass index or weight perception affect contraceptive use?

OBJECTIVE

Overweight and obese women may avoid contraceptive methods they believe are associated with weight gain. The objective of this study was to examine the role of weight and weight perception on contraceptive use.

STUDY DESIGN

Using cross-sectional data from the MyNewOptions study, we analyzed contraceptive use among 987 privately insured, sexually active women aged 18-40 years. Contraception was categorized into three groups: (1) long-acting reversible contraceptives (LARCs), (2) non-LARC prescription methods and (3) nonprescription methods/no method. Multinomial logistic regression was used to model the effect of body mass index category and weight perception on contraceptive use while controlling for pregnancy intentions, sexual behavior and sociodemographic characteristics.

RESULTS

Eighty-three (8.4%) women were using LARCs, 490 (49.6%) women were using non-LARC prescription methods and 414 (42.0%) were using nonprescription methods or no method. In the adjusted multinomial model, overweight [adjusted odds ratio (aOR) 3.84, 95% confidence interval (CI) 1.85-7.98) and obese women (aOR 2.82, 95% CI 1.18-6.72) were significantly more likely to use LARCs compared to normal-weight women. There were greater adjusted odds of overweight and obese women using nonprescription methods/no method compared with non-LARC prescription methods, but this finding did not reach statistical significance. Weight perception was not associated with contraceptive use.

CONCLUSION

In this study sample, overweight and obese women were more likely to use LARCs than normal-weight women. It will be important to further understand how weight influences women and providers' views on contraception in order to better assist women with individualized, patient-centered contraceptive decision making.

IMPLICATIONS

Overweight and obese women may be reluctant to use contraceptive methods they believe are associated with weight gain (i.e., pills, shot), but how that affects contraceptive use is unclear. Compared with normal-weight women, overweight and obese women in this study were more likely to use LARCs than non-LARC prescription methods.

The effect of obesity on intraoperative complication rates with hysteroscopic compared to laparoscopic sterilization: a retrospective cohort study

Background

Surgical sterilization is a common method of contraception. There have been few studies evaluating the effect of obesity on procedural complications with either laparoscopic or hysteroscopic methods of sterilization. The purpose of this study was to compare the incidence of intraoperative complications of hysteroscopic tubal occlusion with laparoscopic tubal ligation among obese and nonobese women.

Methods

This retrospective cohort study compared women undergoing interval laparoscopic or hysteroscopic sterilization in the operating room between September 2009 and December 2011 at a single hospital. Serious complications included: unintended surgery, uterine perforation, anaphylaxis, blood transfusion, infection requiring antibiotics, hospital admission, fluid overload, myocardial infarction, and venous thromboembolism. Post-operative events included: nausea/vomiting, doctor evaluation or additional pain medication required in the recovery room, and emergency department visit within 2 weeks of surgery. The association between sterilization type and incidence of complications was examined overall, separately by BMI group, and also among patients who received general anesthesia.

Results

A total of 433 laparoscopic and 277 hysteroscopic procedures were reviewed. The BMI distribution of the sample was 35 % normal weight, 31 % overweight, and 34 % obese which is comparable to the general US female population. No life-threatening events were identified. Serious complications were similar with 20 (4.6 %) in the laparoscopic group and 11 (4.0 %) in the hysteroscopic group (p = 0.9). The most common serious complications were bleeding from the tube, cervical laceration, and uterine perforation. Although not statistically significant, women with a BMI of 30 or greater had only 1 (1 %) serious complication in the hysteroscopic group compared to 7 (5.2 %) in the laparoscopic group. Postoperative events were increased in the laparoscopic group (16.2 %) compared to the hysteroscopic group (6.9 %), especially among overweight and obese women (p <0.01). Failure to complete the intended bilateral occlusion occurred for 14 women in the hysteroscopic group compared to just one woman in the laparoscopic group (p <0.001).

Conclusion

Both laparoscopic and hysteroscopic tubal sterilization are safe with few serious complications based on these data. No cases of laparotomy, blood transfusion, or life-threatening events were identified. There was no difference in serious complication rate by sterilization method. Overweight and obese women were no more likely to experience a serious complication with either method than women with a BMI <25. There were fewer postoperative events (p <0.01) with hysteroscopic sterilization, but far fewer failed laparoscopic procedures (p <0.001). These study findings can be used to enhance sterilization counseling.

Choice of the levonorgestrel intrauterine device, etonogestrel implant or depot medroxyprogesterone acetate for contraception after aspiration abortion

OBJECTIVE

Women who have abortions are at high risk of contraception discontinuation and subsequent unintended pregnancy. The objective of this analysis was to identify factors associated with choice of highly effective, long-acting, progestin-only contraceptive methods after abortion.

STUDY DESIGN

Women presenting for surgical abortion who selected the levonorgestrel intrauterine device (IUD), the progestin implant or the progestin injection (depot medroxyprogesterone acetate or DMPA) as their postabortion contraceptives were recruited to participate in a 1-year prospective cohort study. We used multivariable multinomial logistic regression to identify factors associated with choosing long-acting reversible contraceptives (IUD or implant) compared to DMPA.

RESULTS

A total of 260 women, aged 18-45 years, enrolled in the study, 100 of whom chose the IUD, 63 the implant and 97 the DMPA. The women were 24.9 years old on average; 36% were black, and 29% were Latina. Fifty-nine percent had had a previous abortion, 66% a prior birth, and 55% were undergoing a second-trimester abortion. In multivariable analyses, compared with DMPA users, women who chose the IUD or the implant were less likely to be currently experiencing intimate partner violence (IPV); reported higher stress levels; weighed more; and were more likely to have finished high school, to have used the pill before and to report that counselors or doctors were helpful in making the decision (all significant at p<.05, see text for relative risk ratios and confidence intervals.) In addition, women who chose the IUD were less likely to be black (p<.01), and women who chose the implant were more likely to report that they would be unhappy to become pregnant within 6 months (p<.05) than DMPA users.

CONCLUSION

A variety of factors including race/ethnicity, past contraceptive use, feelings towards pregnancy, stress and weight were different between LARC and DMPA users. Notably, current IPV was associated with choice of DMPA over the IUD or implant, implying that a desire to choose a hidden method may be important to some women and should be included in counseling.

IMPLICATIONS

In contraceptive counseling, after screening for IPV, assessing patient's stress and taking a history about past contraceptive use, clinicians should discuss whether these factors might affect a patient's choice of method.