Level of knowledge and attitude regarding organ donation: a community-based study from Karachi, Pakistan

Objective The aim of our study was to assess the knowledge and attitude and to find out the statistics regarding public awareness of organ donation in Karachi. This convenient based, cross-sectional study was conducted from the general population of Karachi, Pakistan from December 2015 to December 2016. The respondents were evaluated through a face to face questionnaire. The questionnaire contained variables regarding knowledge and attitude towards organ donation. Result 420 people were approached; amongst them 25 refused to participate, so a total number of 395 respondents consented in the research. The mean age of about 77.5% of the population was in the 18–27 range. More than half of the respondents happened to be students and female (51.1%) (55%) respectively. Our results indicate that there was inadequate knowledge among the general population (25.8%). There was a positive attitude regarding organ donation (75.2%). Television was a popular source of information (27%). 29.90% respondents knew that “Kidney” can be donated. 43.80% of the respondents were oblivious to the allowance of organ donation in their religion. More than half (57.2%) were in favor of the promotion of organ donation. Electronic supplementary material The online version of this article (10.1186/s13104-019-4345-6) contains supplementary material, which is available to authorized users.


Introduction
Every year, 6000 patients expire while waiting for an organ donation. Achieving a name on the waiting list means that there is still a 10-30% chance for not getting a transplant. This is due to the scarcity of transplantation organs worldwide [1].
Donation of organs is an imperative component of transplantation [2]. One of the major issues contributing to the scarcity of organs is because of public attributes such as myths, religious misconceptions, and misunderstood decrees [3]. Many previous studies have indicated that knowledge and attitude play a significant role in rates of organ donation [4][5][6].
The worldwide incidence of knowledge for organ donation varies between 60 and 85%. This change differs from culture and religious beliefs [7]. A study from New York, United States reveled that 88% of people had knowledge about organ donation. Contrastingly, a study conducted in Bursa, Turkey showed that only 60% of Turkish were aware of organ donation [8,9].
Age, gender, socioeconomic status and education level have been reported to impact attitude towards organ donation [8,10]; while culture, ethics and religion are also influencing factors [10,11]. Knowledge about transplants, cadaver and brain death donation has an impact on attitude towards organ donation [12].
Limited research has been carried out in the developing world, where the burden of end-stage organ failure is on the rise and health systems are inadequately equipped [10]. Pakistan is a developing country where 15,000 people are waiting for a kidney transplant while 800 for a liver transplant and 600 for a heart transplant. Two studies were conducted regarding knowledge, attitude, and practice about organ donation. One was conducted in a Open Access BMC Research Notes *Correspondence: fk2391994@gmail.com 1 DOW University of Health and Sciences, Karachi, Pakistan Full list of author information is available at the end of the article tertiary care hospital while other targeted general population [10,12].

Material and methodology Study design and study setting
A cross-sectional study was conducted to evaluate knowledge and attitude of organ donation in general population of Karachi. The study was conducted from December 2015 to December 2016. The target population was the general population of Karachi free of organ failure. The study was conducted in conveniently selected marketplaces from Central, East and South districts of Karachi.

Sampling method and sample size
Non-probability, convenience sampling was used in this study. Participants were informed about the questionnaire and were given the proper knowledge about the purpose of the study. A sample size of 385 was used which was calculated by assuming 50% prevalence for attitude and knowledge regarding organ donation, with a confidence level of 95% and 5% sample error [10].
All adults above the age of 18 years belonging to either gender were interviewed after informed consent. Those people who didn't know the meaning of organ donation were excluded.

Method of data collection
Information was collected using a validated questionnaire taken from previous research [10]. Knowledge and attitude of the respondents were evaluated through a face to face questionnaire (Additional file 1).

Knowledge and attitude variables
Knowledge of the respondents was measured by questions regarding "term organ donation", "Awareness about Cadaver, Living Donation", "Allowance of Organ Donation in Religion" and "Risk involved in Organ Donation. " The attitude of the respondents was assessed by questions regarding "Attitude to donate one's own organ", "Attitude regarding misuse of organs", "Promotion of Organ Donation", "Need of effective laws" and "Attitude regarding donation to a loved one".

Statistical analysis
Data were analyzed by SPSS (Statistical Package Social Sciences). Descriptive statistics, frequency and means were assessed as appropriate. Person Chi-Square test and Fisher Exact test were used to evaluate associations. p-values were studied at < 0.05%.
Result 420 people were approached, 25 of those refused to participate, so a total number of 395 respondents consented, and filled the questionnaire and thus were included.

Demographics
The mean age of about 77.5% of the population fell in 18-27 of range. Most of the respondents were students (51.1%) and female respondents dominated in participation 217 (55%).

Knowledge
Following questions were asked regarding knowledge of organ donation.
• What was your source of Information regarding organ donation? 27% choose television while 23.40% choose the internet. 3.30% came to know about it from Radio ( Fig. 1). • What does "organ donation mean?" 248 (62.8%) thought that term organ donation meant "Removal of tissue from the human body for transplantation to another person". 88 (22.3%) responded to the option of "All of the above" which was correct. 21 (5.32%) knew that "Removal of tissue from the human body from a cadaver". • What can be the reasons for organ donation? 81.8% answered that it's performed "To save someone's life". 9.9% population responded, "For money", 5.6% population selected, "Out of compassion/sympathy". • What organs can be donated? 29.90% knew that "Kidney" can be donated. 21.80% knew about "Eye" donation, however 4.80% knew about "Skin" donation.
Knowledge score There was low knowledge found among the participants 395 (25.8%). There was no significant association found between level of knowledge and age 13 Attitude score There was a positive attitude regarding organ donation (75.2%). There was no association found between attitude score and age (p = 0.549) and marital status (p = 0.368). But there was an association found between attitude score and gender (p = 0.026), occupation (p = 0.049). Details in Table 2.

Discussion
This study was conducted to assess the level of knowledge & attitude regarding organ donation among General Population of Karachi, Pakistan. Our findings revealed very interesting points.
Our study shows (25.8%) of the population had adequate knowledge about organ donation while only (22.3%) of them knew the accurate meaning of the process. This can be because we targeted people who were less familiar with the term. Similar was the case with the previous study, but their data showed (60%) prevalence among the public [10].
In a study conducted in Tamil Nadu amongst college students, results showed (28.9%) of the students knew about the meaning [13]. A study conducted in Greece found that health care students were willing to donate and many of them were ready to register, but they weren't aware of the procedure. In contrary to medical students, British youth was in favor of donation, but few of them were willing to sign up for donation cards whereas they were positive to be the recipient [14].
In a question asked about willingness to donate, our study shows that 8.4% of the population will donate irrespective of circumstances. The result doesn't match with a previous study that had 32% of the population of undergraduates willing to donate [15].
About 43.8% were unsure regarding acceptance of a donation in their religion which is a shocking dilemma and a study conducted in Chennai highlighted the same problem [3]. In a study conducted in Qatar, no religious disparity was found. But in our study, it was found that about (74.3%) of Muslims think that Islam doesn't allow organ donation while the Christian community showed positivity for organ donation [16]. Religious, social beliefs, relation to the lifeless body and the sacredness of cadaver prevents from the donation, this was found in research conducted to find the Islamic perspective of organ donation in Pakistan [17].
The kidney was the most popular organ which was known to be donated (29.9%) while eye followed behind (21.8%). This could be because a famous humanitarian of Pakistan, Edhi had donated his cornea after dying. Research conducted in rural areas of Islamabad also showed that the kidney was the most famous organ known to be donated [18]. In another study, cornea donation was found to be a famous donation (96%) [19]. Correspondingly, a study conducted in a tertiary care hospital found corneal donation to be famous [20].
In a study conducted by Brown et al. [21], 57% relatives consented to donate organs of their loved ones. In our study, 57.7% people were allowing the donor to donate his organs if alive, but 59% said that his family should give the consent if dead. Youth in England were also reluctant at donating the organs of their deceased loved ones [14].
Even though Pakistan is a developing country, our study showed that television was an important source of information, the same results were gained from the study conducted in Faisalabad and Islamabad. Similarly, when asked about the promotion of organ donation, 57.2% opted for it same as the previous study [10,11].

Strengths
Our study was conducted when philanthropist and humanitarian Abdul Sattar Edhi died. He donated most of his organs plus cornea for transplantation. This event may have played a great role in increasing the knowledge and attitude of the population.

Limitations
We tried our best to solve issues and present no limitation, but this study only shows attitudes and knowledge of a small population and doesn't represent masses of Pakistan.