Contraceptive use among women through their later reproductive years: Findings from an Australian prospective cohort study.
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ABSTRACT: Objective
Examine patterns of contraceptive use and contraceptive transitions over time among an Australian cohort of women through their later reproductive years.Study design
Latent Transition Analysis was performed using data on 8,197 women from the Australian Longitudinal Study on Women's Health's 1973-78 cohort to identify distinct patterns of contraceptive use across 2006, 2012 and 2018. Women were excluded from the analysis at time points where they were not at risk of an unintended pregnancy. Latent status membership probabilities, item-response probabilities, transitions probabilities and the effect of predictors on latent status membership were estimated and reported.Results
Patterns of contraceptive use were relatively consistent over time, particularly for high efficacy contraceptive methods with 71% of women using long-acting reversible contraceptives in 2012 also using long-acting reversible contraceptives in 2018. Multiple contraceptive use was highest in 2006 when women were aged 28-33 years (19.3%) but declined over time to 14.3% in 2018 when women were aged 40-45 years. Overall, contraceptive patterns stabilised as the women moved into their late 30s and early 40s.Conclusions
Although fertility declines with age, the stability of contraceptive choice and continued use of short-acting contraception among some women suggests that a contraceptive review may be helpful for women during perimenopause so that they are provided with contraceptive options most appropriate to their specific circumstances.
SUBMITTER: Harris ML
PROVIDER: S-EPMC8357106 | biostudies-literature |
REPOSITORIES: biostudies-literature
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Project description:BackgroundGiven chronic disease is increasing among young women and unintended pregnancies among these women are associated with poor maternal and fetal outcomes, these women would benefit from effective preconception care. However, there is a lack of understanding of how these women use or don't use contraception to inform such interventions. This study examined patterns of contraceptive use among an Australian cohort of young women and investigated the influence of chronic disease on contraceptive use over time.MethodsUsing data from 15,244 young women from the Australian Longitudinal Study on Women's Health (born 1989-1995), latent transition analysis was performed to identify distinct contraceptive patterns among women who were at risk of an unintended pregnancy. Multinomial mixed-effect models were used to evaluate the relationship between contraceptive combinations and chronic disease.ResultsContraceptive use for women with cardiac and autoinflammatory diseases differed to women without chronic disease over the observation period. Compared to women without chronic disease using the pill, women with cardiac disease had double the odds of using 'other' contraception and condoms (OR = 2.20, 95% CI 1.34, 3.59) and a modest increase in the odds of using the combined oral contraceptive pill and condoms (OR = 1.39, 95% CI 1.03, 1.89). Compared to women without chronic disease who used the pill, women with autoinflammatory disease had increased odds of using LARC and condoms (OR = 1.58, 95% CI 1.04, 2.41), using 'other' contraception and condoms (OR = 1.69, 95% CI 1.11, 2.57), and using the combined oral contraceptive pill and condoms (OR = 1.38, 95% CI 1.09, 1.75). No differences in contraceptive patterns over the observation period were found for women with asthma or diabetes when compared to women without chronic disease.ConclusionThe findings identified a need for effective contraceptive counselling as part of routine chronic disease care and improved communication between health care providers and women with chronic disease to improve young women's contraceptive knowledge and agency in contraceptive choice, particularly for those with cardiac or autoinflammatory conditions. This may be the key to reducing high-risk unintended pregnancies among this vulnerable population.
| S-EPMC9078003 | biostudies-literature
Project description:BackgroundWith the rapid increase in the number of women in their later reproductive years (aged 35 and above) in the present decade, the concern surrounding their contraceptive considerations has reached a critical point of importance. This study aims to examine the trends and determinants of modern contraceptive uptake among later reproductive-aged women in Bangladesh.MethodsA total of 17,736 women aged 35 and above were included in the analysis, utilizing data from three consecutives Bangladesh Demographic and Health Surveys conducted in 2011, 2014, and 2017-18. The outcome variable was the uptake of modern contraceptive methods (yes or no). The explanatory variables encompassed survey years, individual characteristics of the women, as well as characteristics of their partners and the community. Multilevel logistic regression model was used to explore the association of the outcome variable with explanatory variables.ResultsWe found that approximately 54% of women aged 35 and more do not use modern contraceptive methods, and there have been no significant shifts in their usage observed over the survey years. Compared to women aged 35-39, women aged 40-45 (aOR = 0.53, 95% CI: 0.49-0.57) and 45-49 (aOR = 0.24, 0.22-0.26) reported lower likelihoods of modern contraceptive method uptake. Higher education correlated with increased uptake of modern contraceptive methods (112%-142%), while partner's education showed a negative association. Later reproductive-aged women in richer (aOR = 0.83, 95% CI: 0.74-0.94) and richest (aOR = 0.76, 95% CI: 0.66-0.88) quintiles reported lower uptake of modern contraceptive methods compared to their counterparts in the poorest quintile. Later reproductive-aged women in Dhaka (aOR = 1.22, 95% CI: 1.07-1.38) and Rajshahi (aOR = 1.37, 95% CI: 1.19-1.59) regions had higher uptake of modern contraception than those residing in the Barishal division. Modern contraceptive methods uptake was 1.22 times higher among women who reported exposure to mass media and 1.19 times higher among women who reported engagement in paid work compared to among women who reported no exposure to mass media and participation in no formal work, respectively. Modern contraceptive methods uptake was 43% higher (aOR = 1.43, 95% CI: 1.32-1.55) in women with more than 2 children compared to those with ≤2 children.ConclusionThe study highlights no significant change in modern contraception uptake among later reproductive-aged women in Bangladesh. This raises concerns about the elevated risk of unintended pregnancies and shorter birth intervals, emphasizing the need for targeted interventions to address the specific needs and preferences of this demographic.
| S-EPMC10984413 | biostudies-literature
Project description:ObjectiveTo evaluate the association between pregravid use of a variety of contraceptive methods and subsequent fecundability.DesignProspective cohort study.SettingDenmark and North America, 2007-19.Participants17 954 women who had tried to conceive for up to six menstrual cycles at study entry. At baseline, participants reported their contraceptive histories, and personal, medical, and lifestyle characteristics.Main outcome measuresPregnancy, determined by bimonthly follow-up questionnaires for up to 12 months.ResultsApproximately 38% (n=6735) of participants had recently used oral contraceptives, 13% (n=2398) had used long acting reversible contraceptive methods, and 31% (n=5497) had used barrier methods. Women who had recently stopped using oral contraceptives, the contraceptive ring, and some long acting reversible contraceptive methods experienced short term delays in return of fertility compared with users of barrier methods. Use of injectable contraceptives was associated with decreased fecundability compared with use of barrier methods (fecundability ratio 0.65; 95% confidence interval 0.47 to 0.89). Users of injectable contraceptives had the longest delay in return of normal fertility (five to eight menstrual cycles), followed by users of patch contraceptives (four cycles), users of oral and ring contraceptives (three cycles), and users of hormonal and copper intrauterine devices and implant contraceptives (two cycles). Lifetime length of use of hormonal contraceptive methods was not associated with fecundability.ConclusionsUse of some hormonal contraceptive methods was associated with delays in return of fertility, with injectable contraceptives showing the longest delay. The findings indicated little or no lasting effect of long term use of these methods on fecundability.
| S-EPMC7656314 | biostudies-literature
Project description:ObjectiveTo determine whether use of oral contraceptives is associated with all cause and cause specific mortality.DesignProspective cohort study.SettingNurses' Health Study, data collected between 1976 and 2012.Population121,701 participants were prospectively followed for 36 years; lifetime oral contraceptive use was recorded biennially from 1976 to 1982.Main outcome measuresOverall and cause specific mortality, assessed throughout follow-up until 2012. Cox proportional hazards models were used to calculate the relative risks of all cause and cause specific mortality associated with use of oral contraceptives.ResultsIn our population of 121,577 women with information on oral contraceptive use, 63,626 were never users (52%) and 57,951 were ever users (48%). After 3.6 million person years, we recorded 31,286 deaths. No association was observed between ever use of oral contraceptives and all cause mortality. However, violent or accidental deaths were more common among ever users (hazard ratio 1.20, 95% confidence interval 1.04 to 1.37). Longer duration of use was more strongly associated with certain causes of death, including premature mortality due to breast cancer (test for trend P<0.0001) and decreased mortality rates of ovarian cancer (P=0.002). Longer time since last use was also associated with certain outcomes, including a positive association with violent or accidental deaths (P=0.005).ConclusionsAll cause mortality did not differ significantly between women who had ever used oral contraceptives and never users. Oral contraceptive use was associated with certain causes of death, including increased rates of violent or accidental death and deaths due to breast cancer, whereas deaths due to ovarian cancer were less common among women who used oral contraceptives. These results pertain to earlier oral contraceptive formulations with higher hormone doses rather than the now more commonly used third and fourth generation formulations with lower estrogen doses.
| S-EPMC4216099 | biostudies-literature
Project description:BackgroundThe association between oral contraceptive (OC) use and long-term mortality remains uncertain and previous studies have reported conflicting findings. We aim to assess the long-term impact of OC use on all-cause and cancer-specific mortality.MethodsOut of 49,259 participants, we analysed data on 2120 (4.3%) women diagnosed with first primary breast cancer between 1993 and 2012, in the Swedish Women's Lifestyle and Health Study. Kaplan-Meier plots were used to graph the hazard of mortality in association with oral contraceptives use, stage of disease and hormone receptors status at diagnosis. Cox proportional hazard model were used to estimate hazard ratios (HR) between OC use and all-cause mortality. The same association was studied for breast cancer-specific mortality by modelling the log cumulative mortality risk, adjusting for clinical stage at diagnosis, hormone receptor status, body mass index and smoking.ResultsAmong 2120 women with breast cancer, 1268 (84%) reported ever use of OC and 254 died within 10 years of diagnosis. The risk of death for OC ever-users relative to never-users was: HR = 1.13 (95% CI: 0.66-1.94) for all-cause mortality and HR = 1.29 (95% CI: 0.53-3.18) for breast cancer-specific mortality. A high percentage of women (42.9%) were diagnosed at early stage disease (stage I).ConclusionsAmong women with primary breast cancer, OC ever-users compared to never- users did not have a higher all-cause or breast cancer specific-mortality, after the adjustment of risk factors.
| S-EPMC6694621 | biostudies-literature
Project description:BackgroundA lack of clarity exists regarding contraceptive uptake and counselling among women with cancer, despite these women having unique family planning needs. This study aimed to systematically review the available literature and produce an overall summary estimate of contraceptive use and counselling among women with cancer across the cancer care continuum.MethodsA systematic search of articles reporting on contraceptive counselling and/or contraceptive use among women of reproductive age (15-49 years) with cancer across the cancer care continuum (e.g. diagnosis, treatment, survivorship) was conducted in MEDLINE, Embase, CINAHL, Maternity and Infant Care and Cochrane Library. Two independent reviewers conducted the data screening, data extraction and risk of bias assessment. Qualitative synthesis and meta-analyses were conducted to summarise the key findings.ResultsWe included 21 articles involving 3835 participants in this review. Studies varied according to the cancer population and time along the cancer care continuum it was assessed. Of the studies that reported the overall contraceptive prevalence among women diagnosed with cancer (n = 8), contraceptive use ranged from 25 to 92%. Of the four studies that focused on cancer survivors, the contraceptive prevalence ranged from 47 to 84%. When the prevalence of these studies was pooled, a crude summary prevalence of 64% (62% among women with cancer versus 68% among cancer survivors) was found. The rate of contraceptive counselling was assessed in ten studies. A pooled prevalence of 50% (44% among women with cancer versus 58% among cancer survivors) was found, with the prevalence ranging from 12 to 78% among individual studies depending on the point in the cancer care continuum that it was provided. When contraceptive counselling was provided, it was found to significantly increase contraceptive use although biases were identified in its application.ConclusionsContraceptive counselling interventions as part of standard cancer care have the potential to not only empower women with cancer and cancer survivors to make informed choices regarding their reproductive health but also provide the ability to plan future pregnancies for times of better health.
| S-EPMC9759910 | biostudies-literature
Project description:BackgroundLong-acting reversible contraceptives (LARCs) have superior contraceptive efficacy compared to short-acting reversible contraceptives (SARCs) and choosing LARCs over SARC methods reduces the need for abortion care. However, little is known how initiating these methods associates with the subsequent overall need of reproductive health services including family planning services, and visits for gynecological reasons in primary and specialized care.MethodsWe followed altogether 5839 non-sterilized women aged 15-44 years initiating free-of-charge LARC methods (n = 1689), initiating or switching SARC methods (n = 1524), or continuing with the same SARC method (n = 2626) at primary care family planning clinics in the City of Vantaa, Finland, 2013-2014 for 2 years using Finnish national health registers. We assessed the use of reproductive health services, namely attending public primary or specialized health care for gynecological reasons or attending the family planning clinics by applying unadjusted and adjusted negative binomial regression models on visit counts.ResultsA total of 11,290 visits accumulated during the two-year follow-up: 7260 (64.3%) at family planning clinics, 3385 (30.0%) for gynecological reasons in primary, and 645 (5.7%) in specialized health care. Altogether 3804 (52.4%) visits at the family planning clinics were for routine checkup, and 3456 (47.6%) for other reasons. Women initiating LARC methods used reproductive health services for reasons other than routine checkups similarly as women initiating or switching SARC methods (adjusted incidence rate ratio 0.93, 95% CI 0.82-1.05), while women continuing with SARC methods used the services less frequently (0.65, 0.59-0.72). Women initiating free-of-charge LARC and those continuing with the same SARC method used services less for abortion care than women initiating or switching SARC (adjusted incidence rate ratios 0.05, 95% CI 0.03-0.08 and 0.16, 95% CI 0.11-0.24, respectively).ConclusionsWhile women initiating LARC methods have lower need for abortion care compared to women initiating SARC methods, women initiating both LARC and SARC methods have similar overall need for reproductive health services. In contrast, women continuing with their SARC method need reproductive health services less than women initiating LARC or a new SARC method. These service needs should be acknowledged when planning and organizing family planning services, and when promoting long-acting reversible contraception.
| S-EPMC9199191 | biostudies-literature
Project description:The contraceptive needs of illicit opioid users differ from non-drug users but are poorly understood. The aim of this study was to describe contraceptive use and pregnancy outcomes in opioid-using women, and to examine their association with a range of risk factors.This retrospective cohort study used UK general practice records, Treatment Outcomes Profile and National Drug Treatment Monitoring System data, and a nested data validation exercise. A cohort of 376 women aged 20-61 years were in active treatment for opioid addiction in October 2010 at two specialised primary care practices in North-East England. Outcomes were age-adjusted prevalence estimates for contraceptive use and pregnancy outcomes in users of illicit opioids. The association between lifestyle-related risk factors and contraception was explored.Drug-using women made lower use of planned (non-condom) contraception (24% vs 50%, p<0.001), had more frequent pregnancy terminations (0.46 vs. 0.025, p = 0.004) and higher annual incidence of chlamydia (1.1% vs. 0.33%, p<0.001), when compared with age-matched population data. Specifically, there was low use of oral contraceptives (4% vs. 25%, p<0.001), IUCD (1% vs. 6%, p<0.001), and sterilisation (7% vs. 6%, p = 0.053), but higher rates of injectable contraceptives (6% vs. 3%, p = 0.003). A total of 64% of children aged <16 years born to this group did not live with their mother. No individual risk factor (such as sex-working) significantly explained the lower use or type of non-condom contraception.This is the first study to describe planned contraceptive use among drug-users, as well as the association with a range of risk factors and pregnancy outcomes. The low uptake of planned contraception, set against high rates of terminations and sexually transmitted disease demonstrates the urgent clinical need to improve contraceptive services, informed by qualitative work to explore the values and beliefs influencing low contraceptive uptake.
| S-EPMC4349816 | biostudies-other
Project description:Little is known about the cumulative effect of adolescent and young adult mental health difficulties and substance use problems on gambling behaviour in adulthood. We use data from one of Australia's longest running studies of social and emotional development to examine the extent to which: (1) mental health symptoms (depressive and anxiety symptoms) and substance use (weekly binge drinking, tobacco, and cannabis use) from adolescence (13-18 years) into young adulthood (19-28 years) predict gambling problems in adulthood (31-32 years); and (2) risk relationships differ by sex. Analyses were based on responses from 1365 adolescent and young adult participants, spanning seven waves of data collection (1998-2014). Persistent adolescent to young adult binge drinking, tobacco use and cannabis use predicted gambling at age 31-32 years (OR = 2.30-3.42). Binge drinking and tobacco use in young adulthood also predicted gambling at age 31-32 years (OR = 2.04-2.54). Prior mental health symptoms were not associated with gambling and no risk relationships differed by sex. Findings suggest that gambling problems in adulthood may be related to the earlier development of other addictive behaviours, and that interventions targeting substance use from adolescence to young adulthood may confer additional gains in preventing later gambling behaviours.
| S-EPMC8037618 | biostudies-literature
Project description:This paper discusses patterns of daily smokeless tobacco (SLT) use and correlates of poly SLT use among married women aged 18-40 years in a Mumbai slum community with implications for tobacco control.Using a mixed methods approach, the study included a structured survey with 409 daily SLT users and in-depth interviews with 42 women. Participants for the survey were selected using a systematic sampling procedure (one woman in every fourth eligible household). Univariate and bivariate analysis, and multiple logistic regressions were conducted to identify demographic and social factors associated with women's use of poly SLT products. To illustrate survey results, in-depth interviews were analyzed using Atlas ti software.Sixty-four percent of the women surveyed used only one type of SLT; of these, 30% used mishri, 32% used pan with tobacco and the rest used chewed tobacco (11%), gul (17%) or gutkha (10%). Thirty-six percent used more than one type of SLT. Poly SLT users chewed or rubbed 50% more tobacco as compared to single users (mean consumption of tobacco per day: 9.54 vs. 6.49 grams; p<0.001). Women were more likely to be poly SLT users if they were illiterate as compared to literate (adjusted odds ratio [AOR]=1.67; 95% confidence interval [CI]=1.07-2.71), if they had lived in Mumbai for 10 years or more, versus less than ten years (AOR=1.67, 95% CI=1.03-2.71); and if their husband was a poly SLT user as compared to a non SLT user (AOR=2.78, 95% CI=1.63-4.76). No differences were noted between pregnant and non-pregnant women in SLT consumption patterns.Tobacco control policies and programs must focus specifically on both social context and use patterns to address SLT use among women of reproductive age with special attention to poly SLT users, an understudied and vulnerable population.
| S-EPMC4364978 | biostudies-other