Data and Sources
The study uses data from a multi-country study entitled “the Relationship Between the use of Misoprostol and the Type and Severity of Abortion Symptoms”. This paper uses data from the study conducted in Ghana. The study was a facility quantitative cross-sectional. A total of three hospitals rendering abortion services – Marie Stopes International Clinics – Ashaiman and Kokomlemle and La-General Hospitals all in the Greater Accra region, Ghana were selected for the study.
The facilities were selected from a list of all providers with at least three years of post-abortion services provision. Selection from the sampling frame was done by simple random sampling from the sampling frame stratified by length of service. Random sampling was preferred over purposive sampling to limit the possibility of bias in the selection of respondents. These facilities were selected because at the time of the study, they had large post-abortion care caseloads.
A total of 800 women aged 18 years and over coming with symptoms of an abortion who were examined in the obstetrics and gynaecology wards of the selected hospitals were recruited over a period of six months for the study after being examined by a physician. Data from a total of 698 women is used for this study given a response rate of 82 percent. A record of examination form was completed by the physician at the end of the examination. All women aged 18 and over who presented with symptoms of an abortion were asked by the provider at the end of initial examination if she was interested in being interviewed for a research study. If interested she was introduced to an interviewer, who was a female doctor or nurse in the obstetrics and gynaecology ward of the participating hospital. Research assistants were trained over a 5 – day period on how to ask questions and code answers. The interviewer obtained informed consent from the woman and if she was agreeable, the interview was carried out in a private setting. Care was taken to ensure that the interviewer did not provide care to the women admitted.
The interview focused on: brief social and demographic characteristics; method of abortion; history of attempts (for current abortion); knowledge of method; where they obtained the method; source of information; expectation of treatment after using the method and the cost of method. The questionnaire was pre tested prior to the actual data collection. Data collection was constantly checked by the investigator at each hospital to ensure accuracy and completeness of data collected from each woman. To ensure data quality, completeness, accuracy and consistency all collected data was checked every day by the investigator and supervisor during the entire data collection period. Any quest related to clarity, ambiguity, incompleteness, misunderstanding, was solved on the following day before the next day’s activities.
All questionnaires completed by the interviewer were kept in a locked filing cabinet at the hospital. At monthly intervals the completed questionnaires were transported to the office of the principal investigator. At this stage no questionnaire contained an individual identifier. All data was entered using Epi Info Version 3.5.3 and later exported to STATA version 14.2 for further analysis. Data quality checks were performed and any inconsistency errors were resolved by reviewing the questionnaire. Data quality checks were done during the data cleaning.
Study variables
Outcome variable was misoprostol use. It was a dichotomous variable derived from the question “Did you use misoprostol to stop this most recent pregnancy? The answers were Yes=1 and No=0. The independent variables in the study included age (18-24, 25-34,35-49),educational level was captured as (no formal education, primary, Junior High School, Senior High School, higher), marital status (single, currently married, cohabiting), number of children/parity (0, 1, 2 or more), number of miscarriages (0, 1, 2 or more), pregnancy intention (wanted, mistimed, unwanted) and contraceptive use (no, yes).
Statistical analysis
In this study both descriptive and inferential analysis were done. At the descriptive level frequencies and percentages were used to describe the respondents who participated in the study. Second, estimates of the prevalence of misoprostol use and explanatory variables are were presented across the independent variables. Afterwards, a binary logistic regression model was fitted to model the strength of association among variables that were significantly associated with misoprostol use. Prior to the model fitting, Variance inflation factor (VIF) was used to check multi-collinearities between candidate variables and there was no evidence of multicollinearity (Mean VIF=1.33, maximum VIF=1.78, minimum VIF=1.070). The results from the regression model were presented as adjusted odds ratios (AORs). Confidence level was held at 95% signifying level of precision. Significance levels were estimated at p<0.05, p<0.01 and p<0.001. All analysis was conducted using STATA 14.2 (StataCorp, 2014).
Ethical consideration
The Institutional review board of the Ghana Health Service approved the study (GHS-ERC:12/11/11). The persons selected for the survey were informed of the purpose of the study, the confidentiality of the responses, the ability of the subject to decline to participate or, if participating, the right to withdraw from the interview at any stage of the research without any consequences to care or benefits they are entitled to. During the informed consent, the person was encouraged to ask questions to clarify issues regarding the study that she/he does not understand. The subject was then required to sign the informed consent form before being enrolled in the study. It was extremely important that the subject’s identity was protected because of the restrictive law on abortion. Care was taken at all stages of the research to safeguard the identity of the subjects and the information they provided. The name of the women was not entered on the questionnaire. Two numbers were affixed to the questionnaire: a temporary number that was appended by the attending physician and a survey number that was allocated by the survey administrator. Upon the discharge of the woman the information from the examination form and details of the treatment of the woman were extracted from this form. The temporary number was then removed from the form and destroyed. Only those women aged 18 and over were interviewed in the study. Interviews were conducted only after the subject fully understood what she was expected to do and willing to participate by giving her consent. The interviews were conducted in private. There was a compensation of US$3 a person for the survey for the time taken. All survey questionnaires were stored in a locked cabinet in the office of the principal investigator who will also be responsible for keeping the key. An additional key was kept with the assistant to the principal investigator. Survey questionnaires were to be destroyed, using paper shredder, five years after the completion of the study.