The study aimed at investigating the frequency of informal payments in hospital services and it’s findings showed that 21.1% of the patients had made informal payments. Investigating the informal payments in Iran’s health system over the last decade has been a topic of interest to researchers and various studies have reported that these payments ranged from 6% to 64% (
6,
9-
13). Differences in frequency rates can be attributed to the study environment (hospital or physician’s office), hospital ownership (public or private), survey level (individual or household), survey time (during or after hospitalization), estimation method, and the type of service. Despite the implementation of the HTP and the dramatic increase in medical tariffs, there are still informal payments in the health system, indicating that the HTP has not achieved the goal of eliminating these payments.
The frequency of informal payment was also reported in studies conducted in Turkey (29%) (
24), Greece (32.4%) (
25), Bulgaria (33%) (
26), Lithuania (50%) (
27), and Moldova (82%) (
28), that were higher than our study.
The highest number of patients were exposed to informal payments in public hospitals (64.4%), which is consistent with the findings of previous studies (
24,
29,
30). This can be attributed to the pattern of referrals and more utilization of public hospital services that increases the probability of frequency of informal payments. According to our findings, most patients were from the middle income group of the community, which is an important factor for the use of public hospital services (
9).
The most common form of informal payments was in cash, which is in line with the findings of previous studies (
6,
9,
10,
24,
31-
33). In some studies, most of the informal payments have been made in the form of non-monetary gifts (
28,
34,
35). It can be concluded that the cultural, economic, and social status of the regions affect the forms of informal payments.
In this study, most payments occurred after the discharge. Studies conducted in Turkey (
24) and Lithuania (
27) are consistent with our findings. Most payments were voluntary (83.5%) and the most important reasons for payment were thanking the doctors and hospitals for their services and ensuring proper behavior of the staff. Society and culture also have an impact on this matter. Iranians always like to appreciate someone who has done a service to them.
In this study, most of the informal payments were found to be received by service personnel (36.03%) and physicians (29.8%). Similar results have been reported in other various studies (
9,
10,
36,
37). Most of the patients believed that the salaries of the service personnel would not be enough for their lives; therefore, they voluntarily gave money to help them. However, some physicians asked patients with severe problems to pay informally before undertaking treatment and patients were forced to accept this request for health reasons although sometimes they were opposed it.
This study found that 16.5% of the payments were made at the request of the care providers. The study of Vian et al. is consistent with the findings of this study (
28). These forms of payments (requested by the care provider) can limit access of patients to appropriate services because not all of them are able to pay. Applying stricter rules and regulations can prevent a direct request from the care provider.
The research findings showed that only 50% of patients were informed of their hospital costs before using the services. The lack of familiarity with health care costs would provide opportunities for care providers to gain further benefits. Due to the bureaucracy governing the health care system, it is not always possible for the patients to distinguish informal payments from the official ones. Therefore, if patients are aware of the services and the prices associated with them at the health centers, they will be faced with very little informal payments at the centers.
There was no significant relationship between demographic variables and payment behavior. Some studies have reported a meaningful relationship between informal payment behavior with gender, age, educational level, place of residence, health insurance coverage and household economic status (
6,
13,
22,
38-
42). This discrepancy in the results can be attributed to the study setting (hospital or household), the type of surveyed patients, country of study, and the data analysis methods.
This study had some limitations. Due to the sensitive nature of the issue, some patients were conservative in narrating their experiences of informal payments. Due to the study design, patients needed to recall their experience from a recent year. Therefore, there may be a recall bias. Although informal payment is not a recurring experience for patients, it can be said that the recall bias has not been very serious.
4.1. Conclusions
Despite the efforts made in the HTP to eliminate informal payments in inpatient services, the goals have not been fully realized. Voluntarily payments, mostly due to staff appreciation, are not unethical; however, a part of the payments was paid at the provider’s request and before the patient's admission. These compulsory informal payments are illegal and unethical and therefore, must be controlled and eradicated. Policymakers can take steps to reduce informal payments by improving the healthcare quality, supervision, setting salary and benefits, enforcing laws, and increasing staff incentives.