In this study, the samples include 18% of single individuals and 82% married. Also, 74% of them are freelancers, 21% unemployed and 5% pensioners. Also, in an Iranian research, in addicts 12% of men are unemployed (
11). On father’s education, 67% of them are either illiterate or in primary school level and also 66% of the mothers are either illiterate or in primary school level.
The first used drug is opium for 54% of men, marijuana 3%, alcohol 5% and smoking 79%. Opium was the most common used drug in our study, the total samples include 18% of single individuals and 82% married. Also, 74% of them were freelancers, 21% unemployed and 5% pensioners. In addition, in an Iranian research, 12% of the addicts were unemployed (
11). With regard to their father’s education, 67% of them were either illiterate or in primary school level and also 66% of the mothers were either illiterate orin primary school level. The first used drug was opium for 54% of men, marijuana 3%, alcohol 5% and 79% cigarette-smoking. Opium was the most common used drug in another study (
12).
Table 1 shows that the cause of relapse after quitting was temptation for 32% of the samples, 10% friends and 17% emotional and domestic problems. In one study, the most important environmental causes of addiction relapse were sleeplessness, temptation, psychological distress, deficiency of confidence, feelings of futility and ramble (
13). In a study, psychological parameters such as anxiety, stress, depression, feeling of losing something, availability of drugs, socializing with addict friends, a belief that they will not become an addict by using the drug once and self-examination were the most common factors of addiction relapse in Turkey (
12). The mean age of the first drug use was 23 years old and the frequency was twice per day. After the first drug, it took 7 months to stop using the drug until relapse. Based on a past study, 53% of addicts relapsed addiction in 3 months and only 12% of them stay without drugs for more than 1 year and the average of quitting was 6.3 months (
13). In another study, 72% of addicted men had relapsed (
14).
A study reported that 35% of relapses occur in negative emotions, 16% in conflicts with others, and 20% for social pressures (
15). Another study concluded that the reasons of 62% - 73% of relapse episodes were under negative emotions and social pressures (
15). One study reported that 35% of relapses occur in negative emotions, 16% in conflicts with others, and 20% for social pressures (
14) reported that 35% of relapses occur in negative emotions, 16% in conflicts with others, and 20% for social pressures. Lowman et al. (
15) concluded that the reasons of 62% - 73% of relapse episodes are under negative emotions and social pressures.
In a study in Iran, 33% of addicts have one time unsuccessful treatment, 38% of them have unsuccessful treatment 2 - 3 times, and 28.5% more than three times of unsuccessful treatment (
13). In addition, another study reported 48.9% of men have addiction relapse within the first 4 months after quitting (
11). Also, in our study, there was no significant relationship between the frequency of drug use in a day and the age of the first drug use with self-efficacy; however, there was direct and significant relationship between drug quitting time and self-efficacy (P < 0.05). There was a significant and reverse relationship between counts of refers to the hospital because of drugs over dosage and self-efficacy. Also, there was no significant relationship between marital status and self-efficacy; however, self-efficacy in married subjects was higher than single ones. A number of relatively recent studies assessing the role of self-efficacy among abusers of various substances have been cited (
9). A study from Iran investigated the relationship between confidence and self-efficacy with the health behavior of students in Yazd with higher self-efficacy in medical university students, their health scores increased. Also, a significant positive correlation was observed between health behavior and self-confidence in students (
16).
Another study found that higher self-efficacy predicted less drug use only after 3 months but not after 6 months (
17). In a study, low refusal self-efficacy has been associated with increased marijuana consumption (
18). Other study showed that self-efficacy was a relatively strong predictor of post-treatment abstinence and the frequency of marijuana use (
9).
A previous study reported a negative relationship between self-efficacy and relapse to alcohol use, but not for relapse to drug use (
19). In a study comparing four treatment approaches for marijuana dependence (
20), while replicating the common finding that high self-efficacy was correlated with longer periods of abstinence. In this study, the relationship between self-efficacy and interval of relapses was significant.
Given the low level of self-efficacy in this study and its relationship with the number of relapses, specifies the need for interventions to increase these variables in addicts. However, higher self-efficacy predicted less drug use only after 3 months but not after 6 months (
17). In a study of the effectiveness of step-down continuing care following residential or intensive outpatient care, there was little evidence to support step-down continuing care itself (
18). Also, self-efficacy was a relatively strong predictor of post-treatment abstinence and the frequency of marijuana use (
21). In a study, individuals who reported initiating marijuana use at older ages had significantly higher levels of marijuana self-efficacy (β = 0.149, P < 0.05) (
21).
Consistent with other studies, the results suggest that self-efficacy factor is an important factor towards relapsed addiction among addicts (
2). Self-efficacy and self-esteem, in one study both variables were associated with procrastination, both in the expected direction and the expected degree. Self-efficacy showed the strongest relationship, with meta-analytic review giving its average correlation with procrastination (
20). In our study, behavioral procrastination in 60.5% of them and decisional procrastination in 62% of them is low and in average range. Another study showed that the students who recorded high levels of self-efficacy assessed their goal achievement as being high. As a consequence of high goal achievement, self-efficacy increased. Self-efficacy mediated the effect of perceived goal achievement on procrastination. Thus, the students with low perceived self-efficacy are vulnerable for finding themselves in a vicious circle of procrastination (
22). One study showed that in line with the definition of procrastination as a combination of delaying to work on a task and discomfort with the delay, affective well-being was better predicted by self-report than by behavioral procrastination. This study suggests that self-reported procrastination better reflect the construct than a purely behavioral measure of procrastination (
23) also in our study, the relationship between behavioral procrastination and decisional procrastination is significant and direct (P = 0. 001). Decisional procrastination is a maladaptive style of deferring a decision in case of an encounter with conflicts and choices. Substantial evidence suggests that people higher in decisional procrastination would take longer time in making decisions. Two principal categories of decisional procrastination were provided, one category highlights the social context in which the decision is to be made and the other deals with individual factors and correlates (
24). The results of a study showed that procrastination and self-efficacy are related to psychological vulnerability also the result of multiple regressions showed that procrastination and self-efficacy explained 40% of the variance of psychological vulnerability in students (
22). In our study, the relationship between behavioral procrastination and self-efficacy was significant and inverse (P = 0. 0001) and the relationship between behavioral procrastination and decisional procrastination was significant and direct (P = 0. 001). Many studies have shown that self-efficacy is a predictor of treatment outcome. In some cases, self-efficacy has been found to predict the quantity of alcohol or drugs consumed. In other studies, self-efficacy significantly predicts alcohol consumption for periods of up to twelve months (
25,
26). However, another study showed that higher self-efficacy predicted less drug use only after 3 months but not after 6 months (17).
With regard to the relationship between procrastination and self-efficacy in this study, it means that serious efforts should be done to restructure weak self-efficacy and procrastination to help enable the drug addicts to be stronger when faced with life challenges after their release. Although the findings of this study are important for the stakeholders in public health, it is also essential to conduct future studies with larger sample sizes. This study found that there was a significant difference between procrastination and self-efficacy as well as the other related factors.
Given the low level of self-efficacy in this study and its relationship with procrastination, specifies the need for interventions to increase these variables in addicts.