O uso dos métodos anticoncepcionais por estudantes de Medicina: uma revisão narrativa / Medical students' use of contraceptive methods: a narrative review

Anticoncepção são todas as técnicas e métodos utilizados para evitar a concepção. Os estudantes de Medicina se destacam nesse contexto, por representarem uma população em um período no qual a gravidez e doenças sexualmente transmissíveis são emergenciais. Logo, este estudo analisou a eficácia dos métodos contraceptivos na comunidade acadêmica médica e verificou se há ou não diferença na taxa de eficácia, em comparação com a população em geral. Sendo assim, realizou- -se uma revisão narrativa e encontraram-se 2.182 artigos; desses, 1.513 cumpriram o critério de inclusão, porém somente quatro artigos atendiam a todos os critérios e foram utilizados. A conclusão do estudo foi de que a taxa de Pearl é maior na população estudada devido ao mau uso dos contraceptivos, necessitando da melhora na qualidade da educação sexual nas universidades de Medicina ao redor do mundo, a fim de se evitarem a perpetuação da má utilização de contraceptivos e a desinformação no meio acadêmico médico.

Contraception is all the techniques and methods that are used to prevent conception. Medical students stand out in this context because they represent a population in a period in which pregnancy and sexually transmitted diseases are emergencies. Therefore, this study analyzed the effectiveness of contraceptive methods in the medical academic community and verified whether or not there is difference in the rate of effectiveness compared to the general population. A narrative review was conducted and 2,182 articles were found, of these 1,513 met the inclusion criteria, but only four articles met all the criteria and were used. The conclusion of the study was that Pearl's rate is lower in the studied population due to the misuse of contraceptives, requiring improvement in the quality of sex education in medical universities around the world in order to avoid perpetuation of misuse of contraceptives and misinformation in the medical academic environment.

Exploring rise of pregnancy in Bangladesh resulting from contraceptive failure.

The objective of this study was to determine how changes in pre-pregnancy contraceptive methods used between 2011 and 2017/18 contributed to the changes in pregnancy resulting from contraceptive methods failure in Bangladesh. We used 2011 and 2017/18 Bangladesh Demographic and Health Survey data. Pre-pregnancy contraceptive methods failure was our outcome of interest, which was determined using women's response about whether they became pregnant while using contraceptives before the most recent pregnancy. The year of the survey was the main explanatory variable. Descriptive statistics were used to describe the characteristics of the respondents. The difference in contraceptive methods failure across the socio-demographic characteristics was assessed by Chi-squared test. Multilevel poison regressions were used to determine the changes in the prevalence ratio of contraceptive methods failure across the survey years. Contraceptive methods failure rate increased between the surveys, from 22.8% in 2011 to 27.3% in 2017/18. Also, male condom use increased by 2.8%, while withdrawal/periodic abstinence and/or other methods decreased by 2.9%. The failure rates in these two categories of contraceptive methods increased substantially by 4.0% and 9.0%, respectively. Compared to the 2011 survey, the prevalence ratio (PR) of contraceptive methods failure was 20% (PR 1.2, 95% CI 1.1-1.3) high in the 2017/18 survey. This PR declined 13% (PR 1.1, 95% CI 1.04-1.2) once the model was adjusted for women's and their partner's characteristics along with the last contraceptives used. This study provides evidence of increasing rates of pregnancy due to contraceptive failure in Bangladesh. Given that this type of pregnancy is known to cause adverse pregnancy outcomes, including abortion, pregnancy complications, maternal and early child morbidity and mortality, policy and programs are needed to reduce its prevalence. Effective coordination between the contraception providers at the healthcare facilities and the households and a proactive role of family planning workers to make couples aware of the effective use of contraceptives are recommended.

Determinants of induced abortion in Tehran, Iran: the role of contraceptive failure.

OBJECTIVES: Induced abortion is highly restricted in Iran and many married women with unintended pregnancies resort to clandestine procedures, resulting in adverse health outcomes. As there is a lack of reliable data on abortion in Iran, this study aimed to examine factors predisposing women to practise abortion, factors facilitating the use of abortion and factors determining women's 'need' to use abortion to control their number of children. METHODS: The study used data from the 2014 Tehran Survey of Fertility, conducted among 3012 married women aged 15-49 years. Bivariate and multivariate binary logistic regression analyses were used. RESULTS: About 6% of women reported that they had had an abortion. The proportion was higher among women who were in their later reproductive years, women who were employed, women who intended to continue their education, women who reported a low level of religiosity, women who had two children and women who wanted no/no more children. Multivariate analysis showed that abortion was twice as high among women who had conceived their most recent birth because of the failure of a modern contraceptive method, compared with women who had discontinued or did not use a contraceptive method. CONCLUSION: The high risk of abortion among women experiencing failure of a modern contraceptive method indicates an unmet need for family planning counselling and education rather than a shortage of contraceptive methods.

Evaluation of the frequency of coitus interruptus and the effect of contraception counselling on this frequency.

In this prospective study, the aim was to determine the frequency and effectiveness of the coitus interruptus method, to compare the demographic characteristics of women using modern contraception methods and those using the coitus interruptus method and to demonstrate how effective contraceptive counselling is in choosing a contraception method. The researchers collected data from 1000 sexually active women in their reproductive period at the gynaecological clinic of a university hospital in Turkey. The researchers used an introductory information contraceptive counselling form, which they prepared for the data collection tool. The rate of the coitus interruptus method use among the interviewed women was 42.8%. There was a statistically significant difference between the coitus interruptus group and the group using modern contraceptive methods regarding mean age, educational status, smoking, awareness of last menstrual period, number of pads used during the menstrual period, and information sources. Following effective contraception counselling, the rate of switching to a modern and proven contraceptive method was found to be 73.8%.Impact statementWhat is already known on this subject? Although the traditional method of coitus interruptus has been used for many years, its incidence is not clearly known. What we know about the subject is based on ancient research. All the studies on the subject are very old and need to be updated.What do the results of this study add? With the help of the data obtained from this study, it is understood that withdrawal method is still widely used today, it is still not known that it is not a modern contraceptive method and the rate of transition to modern methods with effective contraception counselling is very high.What are the implications of these findings for clinical practice and/or further research? In the outpatient clinic conditions, even a very short period of time for contraception counselling will be very beneficial for women and will contribute to family planning and prevent unwanted pregnancies.

Association between contraceptive method chosen after induced abortion and incidence of repeat abortion in Northern Portugal.

OBJECTIVES: In Portugal, a country with strong Catholic roots, elective termination of pregnancy at women's request is still stigmatised, especially if it is a repeat abortion. The objectives of this study were to determine the incidence of repeat abortion, taking into account the contraceptive method chosen after the index abortion event, and characterise the risk factors for repeat abortion. METHODS: This was a retrospective cohort study of 988 women who requested termination of pregnancy during 2015 in a Portuguese tertiary care public hospital. Contraception was given free of charge after the index event. The occurrence of a repeat induced abortion was evaluated during a 24 month follow-up period. RESULTS: Forty-nine (5.0%) of the 988 women had a repeat abortion. Users of long-acting reversible contraception (LARC) had fewer repeat abortions compared with users of non-LARC methods. Overall repeat abortion was 0.8% in subcutaneous contraceptive implant users, 1.5% in intrauterine contraceptive device (IUCD) users, 2.8% in vaginal ring users and 5.8% in oral contraceptives users (p < 0.05). Cox hazards ratio (HR) analysis showed that method choice after abortion correlated significantly with the probability of repeat abortion (p < 0.05). Using women choosing oral contraception as the reference group, the HRs (95% CIs) for repeat abortion were as follows: IUCD 0.282 (0.084, 0.942), contraceptive implant 0.142 (0.019, 1.050), vaginal ring 0.508 (0.175, 1.477). CONCLUSION: Even though highly effective contraceptive methods are freely accessible in Portugal, other challenges must be managed to improve outcomes, such as a timely, patient-centred counselling approach.

Reasons for discontinuation of contraception among women with a current unintended pregnancy in 36 low and middle-income countries.

OBJECTIVES: To explore the reasons for discontinuation of the last contraceptive method used in women with a current unintended pregnancy. STUDY DESIGN: We conducted a retrospective analysis using contraceptive calendar data from Demographic and Health Surveys from 36 low- and middle-income countries from 2005 through 2014. The prevalence of contraception utilization and the contribution of each reason for contraceptive discontinuation was calculated, at country level as well as for the pooled dataset, for 10,901 women aged 15-49 before the current unintended pregnancies. RESULTS: Unintended pregnancies ranged from 5.5% of all pregnancies in the Kyrgyz Republic to 60.0% in Colombia and Peru. In Central Asian and in six African countries, over 80% of women with a current unintended pregnancy had not used any contraceptives in the previous five years. Use of long-acting modern methods remained consistently low across all countries. Among women who last used a traditional method, 83.8% discontinued due to failure. Among women who last used a long-acting modern method, 40.2% discontinued because of side effects. CONCLUSIONS: Our findings confirm that more than 65.0% of women with an unintended pregnancy in 36 low and middle-income countries were either non-users or using traditional methods. An additional 31.2% were using short-acting modern methods. Long-acting methods would have prevented the overwhelming majority of unintended pregnancies. IMPLICATIONS: This paper shows the need for the health system to support use of suitable methods, reduce switching failure and identify early when women are having concerns about the method they are using.

Comparison of self-reported female condom failure and biomarker-confirmed semen exposure.

OBJECTIVE: To investigate whether rates of self-reported Woman's Condom (WC) clinical failure and semen exposure from a functionality study are comparable to results from a contraceptive efficacy substudy. STUDY DESIGN: We structured our comparative analysis to assess whether functionality studies might credibly supplant contraceptive efficacy studies when evaluating new female condom products. Couples not at risk of pregnancy in the functionality (breakage/slippage/invagination/penile misdirection) study and women in the contraceptive efficacy study completed condom self-reports and collected precoital and postcoital vaginal samples for up to four uses of the WC. Both studies used nearly identical self-report questions and the same self-sampling procedures and laboratory for prostatic specific antigen (PSA), a well-studied semen biomarker. We compared condom failure and semen exposure proportions using generalized estimating equations methods accounting for within-couple correlation. RESULTS: Ninety-five (95) efficacy substudy participants used 334 WC and 408 functionality participants used 1572 WC. Based on self-report, 19.2% WC (64 condoms) clinically failed in the efficacy substudy compared to 12.3% WC (194 condoms) in the functionality study (p=.03). Of the 207 WC efficacy uses with evaluable postcoital PSA levels, 14.5% (30 uses) resulted in semen exposure compared to 14.2% (184 uses) of the 1293 evaluable WC functionality study uses. CONCLUSIONS: When evaluating the ability of an experimental condom to prevent semen exposure, the rate of clinical condom failure reported by participants risking pregnancy in an efficacy substudy was significantly higher than the rate reported by participants not risking pregnancy in a functionality study. The rate of semen exposure, assessed by an objective biomarker was nearly identical for the two studies. IMPLICATIONS: Our results suggest that an objective marker of semen exposure in functionality studies could provide a reasonable alternative to contraceptive efficacy studies in evaluating risk of unintended pregnancy and inferring protection from sexually transmitted infection than condom failure rates based on self-report.

Experiencia en la colocación del DIUPP / Experience in the placement of the Diupp

Family planning is a key intervention to decrease the mortality rates and maternal morbidity, and neonatal mortality rates of children by mean of the preventiion of unwanted pregnancies, the same as pregnancies that happen very clsely to another previous one with little space between them. Several studies performed in different parts of the world have demonstrated adverse results related specially with the spaciament of the pregnancies. The risks are particularly higher with women wich get pregnant les after than a previous deliver, spontaneous abortion or induced abortion. The instrauterine device (ID) is a family planning higly efficacious with a prolongued action and reversible, that offers security to most postpartum women, including those who are still nursing. The primary aim of the present report was to determine the frequency in the placement of the DIUPP in our Obstetrical Department between 01/06/2017 and 30/06/2018, and in a second instance, to describe the method for placement of the DIUPP, to determine the curve of learning, to measure the rate of expulsion of the device, and to evaluate the conformity of the users of the method. Unplanned pregnancies have strongly increased, and for that circumstance, we believe that with new strategies, such as it is with the post-event anticonception, we can improve the reproducive health (AU)

Perfect- and typical-use effectiveness of the Dot fertility app over 13 cycles: results from a prospective contraceptive effectiveness trial.

OBJECTIVE: Dynamic Optimal Timing (Dot) is a smartphone application (app) that estimates the menstrual cycle fertile window based on the user's menstrual period start dates. Dot uses machine learning to adapt to cycles over time and informs users of 'low' and 'high' fertility days. We investigated Dot's effectiveness, calculating perfect- and typical-use failure rates. METHODS: This prospective, 13 cycle observational study (ClinicalTrials.gov NCT02833922) followed 718 women who were using Dot to prevent pregnancy. Participants contributed 6616 cycles between February 2017 and October 2018, providing data on menstrual period start dates, daily sexual activity and prospective intent to prevent pregnancy. We determined pregnancy through participant-administered urine pregnancy tests and/or written or verbal confirmation. We calculated perfect- and typical-use failure rates using multi-censoring, single-decrement life-table analysis, and conducted sensitivity, attrition and survival analyses. RESULTS: The perfect-use failure rate was calculated to be 1.0% (95% confidence interval [CI]: 0.9%, 2.9%) and the typical-use failure rate was 5.0% (95% CI: 3.4%, 6.6%) for women aged 18-39 (n = 718). Survival analyses identified no significant differences among age or racial/ethnic groups or women in different types of relationships. Attrition analyses revealed no significant sociodemographic differences, except in age, between women completing 13 cycles and those exiting the study earlier. CONCLUSION: Dot's effectiveness is within the range of other user-initiated contraceptive methods.

Global Contraceptive Failure Rates: Who Is Most at Risk?

Contraceptive failure is a major contributor to unintended pregnancy worldwide. DHS retrospective calendars, which are the most widely used data source for estimating contraceptive failure in low-income countries, vary in quality across countries and surveys. We identified surveys with the most reliable calendar data and analyzed 105,322 episodes of contraceptive use from 15 DHSs conducted between 1992 and 2014. We estimate contraceptive method-specific 12-month failure rates. We also examined how failure rates vary by age, education, socioeconomic status, contraceptive intention, residence, and marital status using multilevel piecewise exponential hazard models. Our failure rate estimates are significantly lower than results from the United States and slightly higher than previous studies that included more DHS surveys, including some with lower-quality data. We estimate age-specific global contraceptive failure rates and find strong, consistent age patterns with the youngest users experiencing failure rates up to ten times higher than older women for certain methods. Failure also varies by socioeconomic status, with the poorest, and youngest, women at highest risk of experiencing unintended pregnancy due to failure.

Changes in the use of effective and long-acting reversible contraception in Vietnam.

OBJECTIVES: To calculate the prevalence and identify correlates of unmet need for contraception and to assess whether prevalence of use of effective contraception and long-acting reversible contraception (LARC) has changed over time among married or cohabiting, reproductive-age women in Vietnam. METHODS: Study population was drawn from nationally representative Multiple Indicator Cluster Surveys conducted in 2000, 2006, 2011 and 2014. Unmet need for contraception was defined as occurring when a fecund, married or cohabiting woman is not using any method of contraception but either does not want children or wants to delay birth for at least 1 year or until marriage. Following the ranking of method effectiveness by the Centers for Disease Control and Prevention, we defined "effective contraception" as implant, intrauterine device, male and female sterilization, injectable, pill, patch, ring or diaphragm. We used multivariable logistic regression to identify correlates of unmet need for contraception in 2014 and Cochran-Armitage trend tests to assess changes in effective contraception and LARC use from 2000 to 2014. All analyses used survey weights to account for the complex sampling design. RESULTS: In 2014, 4.3% of married or cohabiting, reproductive-age women had unmet need for contraception. Multivariable analysis showed that age, education and number of children ever born were statistically significant correlates of unmet need for contraception. Use of effective contraception statistically significantly declined from 53.0% in 2000 to 45.7% in 2014 (p<.0001). Similarly, LARC declined from 39.6% in 2000 to 30.0% in 2014 (p<.0001). After adjusting for age, education, residence and having at least one son, these secular trends remained. CONCLUSION: Findings indicate that effective contraception and LARC use have decreased among married or cohabiting women of reproductive age in Vietnam. Correlates of unmet need for contraception should be used to inform interventions to prevent unintended pregnancy. IMPLICATIONS: Although the prevalence of unmet need for contraception was low (4.3%) in 2014, the use of effective contraception and long-acting reversible contraception declined among reproductive-age, married or cohabiting women in Vietnam from 2000 to 2014. This finding is particularly striking given the economic growth in the nation during this time frame.

Estimating six-cycle efficacy of the Dot app for pregnancy prevention.

OBJECTIVE: To assess six-cycle perfect and typical use efficacy of Dynamic Optimal Timing (Dot), an algorithm-based fertility app that identifies the fertile window of the menstrual cycle using a woman's period start date and provides guidance on when to avoid unprotected sex to prevent pregnancy. STUDY DESIGN: We are conducting a prospective efficacy study following a cohort of women using Dot for up to 13 cycles. Study enrollment and data collection are being conducted digitally within the app and include a daily coital diary, prospective pregnancy intentions and sociodemographic information. We used data from the first six cycles to calculate life-table failure rates. RESULTS: We enrolled 718 women age 18-39 years. Of the 629 women 18-35 years old, 15 women became pregnant during the first six cycles for a typical use failure rate of 3.5% [95% CI 1.7-5.2]. All pregnancies occurred with incorrect use, so we did not calculate a perfect use failure rate. CONCLUSIONS: These findings are promising and suggest that the 13-cycle results will demonstrate high efficacy of Dot. IMPLICATIONS: While final 13-cycle efficacy results are forthcoming, 6-cycle results suggest that Dot's guidance provides women with useful information for preventing pregnancy.

Current and past depressive symptoms and contraceptive effectiveness level method selected among women seeking reproductive health services.

RATIONALE: More thoroughly understanding the association between elevated depressive symptoms and effectiveness level of contraceptive method selected at a reproductive health visit could help women prevent unintended pregnancy. OBJECTIVE: This study examined how the association between both current and past depressive symptoms and effectiveness level of contraceptive method selected at a clinic visit varies by type of reproductive health visit. METHODS: Current and past depressive symptoms and contraceptive method selected were assessed among 1215 women aged 18-25 years seeking general reproductive health or abortion services at 40 community clinics throughout the United States. Using standard categories of effectiveness based on pregnancy rates during typical use, women's contraceptive method selected was coded as a low (e.g., no method, withdrawal, condoms), moderately (pill, patch, ring, or shot), or highly effective method (IUD, sterilization, implant). Depression status was divided into four categories: 1) no elevated depressive symptoms ever, 2) current elevated depressive symptoms only, 3) past elevated depressive symptoms only, and 4) past and current elevated depressive symptoms. Visit type, general reproductive health versus abortion care, was a moderator. The interaction effect between depressive symptoms and visit type on contraceptive method effectiveness level chosen was estimated with multinomial logistic regression analyses. RESULTS: In general reproductive health visits, having both elevated current and past depressive symptoms increased women's likelihood of choosing low versus moderately effective methods (RRR = 5.63, 95% CI = 2.31 to 13.71, p < .0005). In contrast, among abortion patients, only current elevated depressive symptoms were associated with choosing high versus moderate effectiveness methods (RRR = 1.74, 95% CI = 1.06 to 2.86, p = .029). CONCLUSION: Results suggest that considering both women's current and past elevated depressive symptoms and the type of reproductive health visit may assist providers in helping women prevent unintended pregnancy.

Adolescent childbearing trends and sub-national variations in Ethiopia: a pooled analysis of data from six surveys.

BACKGROUND: Ethiopia houses the second largest population of female adolescents in Africa. Adolescent childbearing can have detrimental effect to the health and wellbeing of women and their offspring. This study examined trends, sub-national variations and determinants of early childbearing (i.e. childbearing before age 20) in Ethiopia. METHODS: Data from the 2000-2011 Ethiopia Demographic and Health Surveys and from the 2014-2016 Performance Monitoring and Accountability surveys were pooled for this analysis. Based on the year the women reached puberty, five different cohorts were reconstructed that date back to the early 1970s. Kaplan-Meier methodology was used to estimate the cumulative probability of early childbearing and a Cox proportional hazard regression model to examine the associated factors. RESULTS: The cumulative probability of early childbearing declined by approximately two-fifth in the past four decades, from 57.6 to 35.3%. The occurrence of early childbearing varies substantially by region. In the most recent period, it ranged from 9.6% in Addis Ababa to 59% in Benishangul-Gumuz. Early childbearing risk was reduced by 95% for women who did not marry before the age of 20 years compared to those who married before the age of 18 years. For adolescents who married at the age of 18 and 19 years, early childbearing risk decreased by 60 and 78%, respectively. During the same period, there was a parallel decline in the cumulative probability of early marriage (i.e., before the legal age of 18 years) from 55.3 to 28.7%. Compared with adolescents with no education, those with elementary and secondary or higher education had a 50 and 82% lower risk of early childbearing, respectively. CONCLUSIONS: Early childbearing declined in Ethiopia, largely driven by a parallel reduction in early marriage. However, a large portion of adolescents are still facing early childbearing, and the situation is more dismal in some regions than others. A further reduction in early childbearing is warranted by enforcing the law on the minimum marriage age and expanding secondary and higher education for females. These efforts should give greater emphasis to regions where early childbearing is markedly high.

The effects of preabortion depressive symptoms on postabortion contraceptive effectiveness level chosen among women seeking abortions.

OBJECTIVE: We examined whether preabortion depressive symptoms were associated with contraceptive method effectiveness level chosen among women seeking abortions. STUDY DESIGN: Three-hundred and forty-seven young, low-income women 18 years or older who were seeking abortions at 3 community reproductive health clinics in Northern California were recruited to participate in a study on contraceptive decision making. We classified women into choosing low-, moderate- or high-effectiveness contraceptive methods based on typical-use failure rates. We used the Center for Epidemiologic Studies Depression scale to assess depressive symptoms as a continuous and dichotomous variable. Using the standard cutoff of 20, women who scored at or above this were considered depressed for the dichotomous measure. We used multinomial logistic regression to examine the association between preabortion depressive symptoms and contraceptive effectiveness level chosen to use after an abortion, adjusting for sociodemographics, abortion characteristics, pregnancy history, future pregnancy desires, relationship characteristics and adverse experiences. RESULTS: After adjusting for covariates, we found that a one-unit increase in depressive symptoms was associated with a higher likelihood of choosing low- versus moderate- [adjusted odd ratio (aOR)=1.05, 95% confidence interval (CI): 1.01-1.10, p<.02] and high-effectiveness methods (aOR=1.05, 95% CI: 1.002-1.10, p<.05). Furthermore, women scoring above the cutoff for depression were more likely to choose low- versus moderate-effectiveness methods (aOR=4.56, 95% CI: 1.27-16.32, p=.02). CONCLUSIONS: More preabortion depressive symptoms were independently associated with choosing low- versus moderate- and high-effectiveness contraceptives. IMPLICATIONS: These findings together with other findings show that preabortion depressive symptoms do not uniformly influence effectiveness level of contraceptive method selected to use after an abortion. Reproductive health care providers should consider the impact of women's psychological symptoms on their contraceptive decision making.

Use of Reversible Contraceptive Methods Among U.S. Women with Physical or Sensory Disabilities.

CONTEXT: Women with disabilities experience a higher rate of adverse pregnancy outcomes than women without disabilities. Preventing or delaying pregnancy when that is the best choice for a woman is a critical strategy to reducing pregnancy-related disparities, yet little is known about current contraceptive use among women with disabilities. METHODS: A cohort of 545 reproductive-age women with physical disabilities (i.e., difficulty walking, climbing, dressing or bathing) or sensory disabilities (i.e., difficulty with vision or hearing) was identified from among participants in the 2011-2013 National Survey of Family Growth. Those at risk for unplanned pregnancy were categorized by whether they were using highly effective reversible contraceptive methods (IUD, implant), moderately effective ones (pill, patch, ring, injectable), less effective ones (condoms, withdrawal, spermicides, diaphragm, natural family planning) or no method. Multinomial regression was conducted to examine the association between disability and type of contraceptive used. RESULTS: Some 39% of women with disabilities were at risk of unplanned pregnancy, and 27% of those at risk were not using contraceptives. The presence of disability was associated with decreased odds of using highly effective methods or moderately effective methods, rather than less effective ones (odds ratio, 0.6 for each), but had no association with using no method. CONCLUSION: There is a significant need to reduce contraceptive disparities related to physical or sensory disabilities. Future research should explore the extent to which contraceptive use differs by type and severity of disability, as well as identify contextual factors that contribute to any identified differences.

Safety and effectiveness of female tubal sterilisation by hysteroscopy, laparoscopy, or laparotomy: a register based study.

OBJECTIVE: To determine the safety and effectiveness of female sterilisation in the Finnish population. DESIGN: A national register-based study using record linkage. SETTING: National data from Finland. SAMPLE: A total of 16 272 female sterilisations performed in 2009-2014. METHODS: The Register of Sterilisations was linked with the Hospital Discharge Register, Termination of Pregnancy Register, and the Medical Birth Register in order to investigate the occurrence of re-sterilisations, other surgical operations, and unwanted pregnancies after sterilisation, per method. MAIN OUTCOME MEASURES: Outcome measures included all pregnancies after sterilisation (births, miscarriages, terminations of pregnancy, and ectopic pregnancies) and operations (repeat sterilisations, other hysteroscopic and laparoscopic procedures, hysterectomies, and re-operations for a complication). The outcomes were presented by method as risk ratio (RR) with 95% confidence intervals (95% CIs). RESULTS: There was no significant difference in all spontaneous pregnancies between the groups. The risk ratio for any pregnancy was 1.27 (95% Cl 0.80-2.02) for Filshie® versus Essure® and 1.35 (95% Cl 0.92-1.96) for Pomeroy versus Essure® . In total, 1394 (8.6%) selected operations were identified after primary sterilisation. Re-sterilisations and hysteroscopies were most frequent among Essure® patients. CONCLUSIONS: Patients undergoing hysteroscopic or laparoscopic sterilisation have a similar risk of unintended pregnancy. All sterilisations are safe, and the risk of re-operations because of complications is low. Women with Essure® have a higher risk of undergoing re-sterilisation compared with patients undergoing laparoscopic sterilisation. TWEETABLE ABSTRACT: Essure® , Filshie® , and Pomeroy sterilisations are equally effective and safe.

Introducción al método de la ovulación o método Billings / Introduction to the ovulation method or Billings method

El presente material fue elaborado con la intención de ofrecer a los estudiantes e medicina y profesionales de la salud un material de lectura con las nociones básicas del método, que pueda ser utilizado por los mismos como material de apoyo para la atención primaria en salud (APS) con que cuenta la Carrera de Medicina de la Universidad Católica Nuestra Señora de la Asunción. Introducción al método de la ovulación, fue redactado en forma sencilla, por lo que podrá también ser utilizado como fuente de información para las pacientes que deseen conocer el método. En honor a su título, este material de ninguna manera pretende lograr expertos en el tema, pero si proporcionar a los estudiantes y profesionales de la salud, el entrenamiento básico que les permita apoyar y asesorar a las pacientes que desean seguir el método de ovulación. (AU)