WHO multi-country survey on abortion-related morbidity and mortality in health facilities: Study protocol

Introduction: According to the WHO, abortion accounts for about 8% (4.7–13.2) of maternal mortality worldwide. In 2010, the WHO Multi-Country Survey (MCS) on Maternal and Newborn Health collected data on over 300 000 women who were admitted in health facilities to receive pregnancy-related care. Abortion data were partially captured by centring on severe maternal outcomes (ie, near-miss or maternal deaths). Building on the experiences of the prior MCS as well as current WHO reproductive health projects, we are undertaking a multi-country survey to better capture the burden and severity of abortion-related complications and management among women presenting to the health facilities. Methods and analysis: This is a large cross-sectional study with prospective data collection. It will be implemented in health facilities in 30 countries across the WHO regions of Africa, Americas, Eastern Mediterranean, Europe, South East Asia and Western Pacific. Countries and facilities will be identified through a multistage sampling methodology. Data collection will be at both the facility and individual levels, involving review of medical records and exit surveys with eligible women using audio computer-assisted self-interview. All women presenting to the health facilities with signs and symptoms of abortion complications will comprise the study population. Online data entry and management will be performed on a web-based data management system. Analysis will include prevalence of abortion-related complications and descriptive frequencies of procedural/non-procedural management and experience of care. Ethics and dissemination: Ethical issues of the consent process are addressed. Dissemination plans will involve the participating facilities and communities to further strengthen abortion-related research capacity within the MCS on Abortion (MCS-A) countries. Furthermore, dissemination of results will be an iterative process at both the facility and national level to potentially propagate positive changes to abortion-related policies and practices. This is a large cross-sectional study with prospective data collection at the facilities. It will be implemented in health facilities in 30 countries across the WHO regions of Africa, Americas, Eastern Mediterranean, Europe, South East Asia and Western Pacific. Multistage sampling will be used to identify countries, provinces/states and health facilities (figure 1). Some of these facilities may have previously been included in the WHO Global Survey and MCS.38 39 A facility assessment form will aid in the selection of the facilities that will be included in the survey for individual data collection. Once the appropriate facilities are selected, data collection will be conducted using medical records and exit surveys among women who are receiving care for abortion-related complications during the study period. Overview of study design for WHO MCS-A. MMR, maternal mortality ratio; WHO MCS-A, WHO Multi-Country Survey on Abortion. The first step of the multistage sampling is selection of the countries, summarised in figure 1. Initially the countries were mapped by their maternal mortality ratio (MMR) levels, abortion legal grounds and WHO regions.40 41 The countries with low MMR, defined as MMR<50 based on most recent maternal mortality estimates40 and countries with no data were removed. The remaining countries were those with medium and high MMR and we performed random sampling from this pool. We also stratified the countries by their participation in the previous WHO MCS so that once random sampling resulted, we could include both a sample from new countries and prior MCS countries. As a result, 30 countries were randomly sampled, weighted by burden of maternal mortality between regions and by population within the region. Based on this sampling strategy, the following countries have been identified: Algeria, Argentina, Bangladesh, Benin, Bolivia, Brazil, Burkina Faso, Chad, Cuba, Democratic Republic of the Congo, Dominican Republic, El Salvador, Ethiopia, Ghana, Guinea-Bissau, India, Indonesia, Kenya, Malawi, Morocco, Mozambique, Myanmar, Nepal, Niger, Nigeria, Pakistan, Peru, Philippines, Tajikistan and Uganda. For logistical (management of the implementation across countries including data quality assurance), financial and operational reasons based on the previous WHO MCS on caesarean section and maternal near miss, the study will be implemented in three phases. The phased implementation will start with the African countries, followed by the countries in the regions of Southeast Asia, Mediterranean and Western Pacific and end with the countries from the Americas Region. After the selection of the study countries, the second stage of sampling will consist of random selection of two provinces/states, with probability proportional to the population size, plus the capital city/metropolitan area. For very large province/states, a third stage sampling will be used for sampling subdivisions below the province/state level. For very large cities, a fourth sampling stage will be implemented based on the random selection of city geographical subdivisions, with probability proportional to the respective populations.38 Once the geographical areas are selected, 10 facilities per state/province (with a total of 30 facilities per country) will be selected from the census of private and public facilities within that area fulfilling the following characteristics: facilities with >1000 deliveries per year, a gynaecology ward and surgical capability, defined as providing the signal functions for comprehensive emergency obstetric care, which includes removal of retained products and surgical capability.42 Facilities that have <10 postabortion care (PAC) patients reported over 1 month will be excluded. If there are <10 facilities fulfilling these criteria, all eligible facilities in that area will be selected. In the case of a sampled facility refusing participation, it will be replaced by another facility. Prior use of this sampling scheme in the WHO Global Survey and MCS showed that such a sampling scheme is feasible and represents the facility-based healthcare systems available in the countries and applicable to our study topic of interest. Sample size: There is considerable variation in reporting for abortion-related morbidity across facilities.16 17 Using individual facility data from a morbidity study on abortion conducted in Zambia,43 we have applied our facility sampling criteria of >1000 annual deliveries and surgical capability and calculated different scenarios for sample size and data collection period (table 1). These calculations are based on having at least 16 facilities per country. The lower limit presents the calculations excluding the biggest contributing facility in the sample. In our sampling design, we have planned for a maximum of 30 facilities per country. Sample size calculation scenarios based on Zambia data from 16 facilities43 PAC, postabortion care. Based on this, we conservatively estimate that each study country will have between 800 and 1000 women meeting the eligibility criteria for inclusion, making them eligible for medical data extraction. Therefore, the data collection period will be 3 months to account for variability across facilities and countries. Based on this, we also added the exclusion criterion for facilities that have <10 PAC patients reported over 1 month. After selection of the facilities, individual data collection will be conducted at the selected facilities during the study period. Data collection at the facilities will be obtained through two different resources at the individual level: (1) medical records, (2) exit surveys with women. For the medical record review component, all women admitted to the participating facilities with signs and symptoms of abortion-related complications will be included in the medical record review. This will include those women who present or are diagnosed during the hospital visit with an ectopic pregnancy or molar pregnancy. We also will record those cases of women who died from abortion-related complications. Exclusion criteria will include pregnant women with a diagnosis of threatened abortion which is defined as vaginal bleeding with a closed cervix.44 The criterion of all women presenting to the facilities rather than admission to the facility is used to avoid exclusion of those women who seek care in the facilities for less severe complications. The eligibility criteria for the exit survey component are women with abortion-related complications who are admitted for a minimum of 24 hours and able and willing to consent. This will allow us to include women with more severe complications, which are more likely to be due to induced abortion and explore the characteristics of the abortion and experience of care they received. If a woman was referred and/or died we will not be able to include her in the exit survey component, and this might be a potential source of bias; however, we note that we will report on the women who died or who were referred throughout the study. Each region will have a regional coordinator. The regional study coordinators will oversee the implementation of the study and coordinate between the Steering Group and country principal investigators (PIs) throughout this process. For each country, country teams will be established. Each country will have a PI who will oversee the implementation of the study in the participating facilities and ensure compliance to the study protocol. For the study sites, each facility will have a hospital coordinator. In most cases, they will be the obstetrician/gynaecologist at that facility. The role of this coordinator is to train the research assistants, supervise the data extraction and serve as the focal person for that facility and maintain communication with the country investigator(s). In each hospital, the hospital coordinator will identify and train one research assistant who is legally allowed to access medical records within the facility for data extraction. The facility assessment form will be completed by the facility administrator or obstetrician/gynaecologist at each identified facility. This survey will include sections on the location and type of facility, structure and capacity, identification of morbidity and near miss, provision of abortion and management of complications. This form will aim to identify the actual burden related to abortion complications in each facility and will include questions on the numbers of PAC provision, gynaecology admissions due to PAC, manual vacuum aspiration and surgical evacuation at three different time points (over the past 30 days, past 3 months, typical month) to get a better idea of the capacity and the number of patients managed. The numbers reported from these facilities will inform the selection of facilities for the individual data collection. At the individual level, the first step involves assessment of the medical records to include potentially all women who have been cared for at the participating facilities with signs and symptoms of abortion-related (spontaneous or induced) complications. The research assistants will be trained in identifying from the medical records the signs and symptoms of abortion-related complications. They will extract data from medical records of women whose care has been completed into case report forms developed for the study. One week of training and piloting of the tools and the data collection process will take place at each site for the research team, prior to the initiation of the study. For the exit survey, eligible women will be approached and invited to participate in the exit interview after being cleared for discharge or are in stable condition. Study procedures will be explained and informed consent will be obtained. Questions in the survey will include brief sociodemographic background, gestational age, type of abortion, if induced, abortion safety characteristics (method used, provider, setting), and experience of care related to effective communication, respect and dignity and emotional support. With the help of the WHO framework on quality of care,31 objectives measures have been taken into account to reflect the woman's experience of care. Exit surveys will be conducted at a private location with a focus on maintaining participant confidentiality. Audio computer-assisted self-interviewing (ACASI) will be used to further promote confidentiality. With this system, the participant listens to a recorded voice and responds to the question using the keyboard, mouse or touchscreen. The computer-assisted self-interview has been seen as a promising tool to measure sensitive or socially unacceptable behaviours.45 46 The ACASI adds the audio component which allows inclusion of illiterate participants. This technology also removes the interviewer bias and standardises question administration.47 This form of questionnaire has been used and accepted in survey research on several sensitive topics including abortion.48–50 A central system will be used for online data entry and management by the data management unit at Centro Rosarino de Estudios Perinatales (CREP) which is been responsible for data management of WHO Global Survey and MCS. The ACASI data will be stored in a secure file on the computer and the research teams will transfer these files at regular intervals to the central system managed by CREP. Data analysis and interpretation will be performed by the Project Steering Group in collaboration with the country teams. As the study is following phased implementation by regions, data will be analysed by regions and then an overall analysis will be conducted once the implementation of the study is completed in all of the regions. By analysing data of each region, we are aiming to interpret the results to identify and respond to country-level and regional-level needs and priorities to better inform future steps. In addition, phased implementation will provide an opportunity to interpret the country and regional results more in depth than what can be done in an overall analysis. It should be noted that for the women where we have information from the medical record review form and the exit surveys, the data will be linked and analysed accordingly. The main purpose of linking the clinical records and exit survey is to use the background information collected in the medical record review for the analysis of the ACASI data. This approach will allow us to have enriched data on each of these women by providing expanded information from the record review and ACASI interview. During the data analysis phase, we will identify the patterns (if any) and explore the distribution of missing data before we decide on the best method of analysis. Analysis techniques for a stratified multilevel sampling design will be used to obtain descriptive data on abortion-related complications at the facility, country and regional levels. The general analytical approach for the main objectives is as follows: There are several ethical considerations to take into account for such a study. Unless it is recorded in the medical forms, the study will not try to differentiate between induced or spontaneous abortions. We hypothesise that women with complications who stay in the facility for longer periods of times and/or are admitted are more likely to have induced abortions; however, due to legal issues in a number of countries and the sensitive nature of this topic, we did not want to place the burden on the women nor on the research assistants and healthcare providers to specifically identify women with induced abortions. If it is recorded as such in the medical forms, this information will be extracted. With regard to the consent process for the medical record review, individual consent will not be necessary due to the fact that this is an observational study in which data will be collected and extracted from the health facility medical records without identifying the study participants. However, as highlighted in the Sarkar,53 certain principles can be followed to help the ethical conduct of the study where a waiver of informed consent is granted. These four principles are the following: (1) only routine clinical information is used for the analysis; (2) any identifying information is removed from the data set by the data controllers (the hospital coordinator in our case) and the data are coded into alphanumeric format; (3) confidentiality clauses are explicitly specified for those conducting the data extraction (research assistants); and (4) finally, obtaining clearance from the Institutional Review Board. We have followed all four principles with our core protocol. Although we are not seeking informed consent for the medical record review, each woman will have the opportunity to ‘opt-out’. In each facility, we will place posters and information materials that the facility is engaged in research studies that involve medical record reviews. There will be a statement confirming confidentiality and that all records will be de-identified. At the end of the message, it will note that the patients can inform their provider if they want to ‘opt-out’ of these medical record studies. Care will be taken to place the information in areas visible to the women. In addition, the posters and information materials will be developed in the local languages. Providers will also be trained to convey the opt-out option at the start of the visit so that illiterate women will also understand their options. The ACASI exit survey component will require informed consent. Potential participants for the exit survey will be fully informed of the study by the research assistant at the time of screening. Participation in the exit survey will be entirely voluntary and participants are free to refuse or leave at any time. Full informed consent will be ensured through the information and consent form, which will be available in the relevant local language. Sufficient time will be given for questions or clarifications. Participant information will remain confidential at all times. If the exit survey elicits any negative emotions or distress, an on-site counsellor will be available in addition to provision of additional information for resources outside of the facility. Since our criteria focuses on women of reproductive age experiencing symptoms of abortion-related complications, this might invariably include minors. If this is the case, the informed consent process for the minor will follow the country and local policy regulations. If the minor is able to consent for herself and desires to participate, she will be included. If the country regulation includes informing a third party and the minor is willing for this, we will proceed with the enrolment process. If the minor does not desire informing a third party, then she will not be invited to participate. In all participating countries, the relevant ethical clearance will be obtained. As a facility-based study, an authorisation to perform the study will be obtained at the institutional level from the responsible authority in all selected health facilities. Findings from this study will act as a springboard to further investigations of abortion and strengthen the research capacities of the participating countries as well as inform abortion-related policy and practice. The results of this study by phases will be published in peer-reviewed journals. Collaborating investigators will disseminate local and collective results to their department and authorities. Dissemination of results to participating institutions and communities will take place through meetings of stakeholders within the facilities and the communities. Local partners will be encouraged to use the data in their country settings. In addition, the ACASI interview techniques will provide new and original data on the care received at these participating facilities. It is anticipated that the dissemination of study findings will help improve abortion care in several respects. The survey instruments will offer an informative process that can potentially effect changes in the facilities. For example, the individual medical record form inquires on the management strategy of the complications to see if it aligns with WHO recommendations. For those cases that are not following the recommended treatment, this may guide the managers to improve their abortion services. In addition, the use of ACASI will provide information on the quality of care received at the facility. Use of these tools is both for research purposes and for facilities in general to use the tools and the information gained to track and improve quality of care provided to women who seek care for abortion-related complications. Learning more about the situation in these countries and the regions in general could be used by the researchers, advocates and policymakers to encourage governments to re-examine their abortion laws and practices, and initiate changes that support the provision of safe abortion.