Low self-esteem and psychiatric patients: Part II – The relationship between self-esteem and demographic factors and psychosocial stressors in psychiatric patients
© Salsali and Silverstone; licensee BioMed Central Ltd. 2003
Received: 25 November 2002
Accepted: 11 February 2003
Published: 11 February 2003
The objective of the present study was to identify the effects and relative importance of demographic factors and psychosocial stressors on self-esteem of psychiatric patients.
The present study was carried out on a consecutive sample of 1,190 individuals attending an open-access psychiatric outpatient clinic. Patients were diagnosed according to DSM III-R diagnostic criteria following detailed assessments. At screening, patients and controls completed two self-esteem questionnaires, the Rosenberg self-esteem scale and the Janis and Field Social Adequacy scale. In addition, a large amount of demographic and psychosocial data was collected on all patients.
Significantly increased self-esteem was observed with an increase in age, educational achievement and income. Employed patients showed significantly higher self-esteem compared to unemployed patients. Female patients had a significantly lower self-esteem compared to male patients. The self-esteem of psychiatric patients did not vary significantly with their marital status. No relationship was detected between acute stressors and the self-esteem of psychiatric patients, although severe enduring stressors were associated with lower self-esteem in psychiatric patients.
The results of this large study demonstrate that the self-esteem of adult psychiatric patients is affected by a number of demographic and psychosocial factors including age, sex, educational status, income, employment status, and enduring psychosocial stressors.
Previous research in non-psychiatric populations has shown that self-esteem is related to a number of demographic factors such as sex [1–4], age [1, 5–8], marital status [9, 10], educational status [11–20], and income [21–23]. Self-esteem is also related to various psychosocial factors, including life events [24–26], social support [27–29], and delinquency [30–34]. However, sometimes these findings have not been consistent between studies. For example, while a majority of researchers [1–4] have reported higher global self-esteem in men compared to women, others have not found these differences [35, 36].
Nonetheless, since previous research mostly has been carried out in non-psychiatric populations, it is uncertain how relevant these findings are to psychiatric patients. This is important since lowered self-esteem is recognised to occur in several psychiatric disorders, particularly depressive disorders [37, 38], eating disorders [39–41], and alcohol and drug use disorders [42–48]. Indeed, it has been proposed that lowered self-esteem is an important etiological determinant in the development of each of these disorders [26, 28, 49–51]. Therefore, it is of considerable interest to determine which factors are associated with lowered self-esteem in psychiatric patients.
The current study has been designed to explore the relationship between self-esteem and a number of demographic and psychosocial factors in a large sample of psychiatric outpatients, with the aim of clarifying the relative strength of each of these associations.
The current study was carried out on data collected on a consecutive sample of 1,190 cases attending a psychiatric open access clinic over a one-year period. In this clinic patients can refer themselves or be referred through a family doctor. The sample consisted of 957 psychiatric patients, 182 cases with conditions not attributable to a mental disorder but who had psychosical stressor (the "psychosocial stressor" group, also termed "V-codes" in DSM-III R), and 51 healthy individuals who accompanied patients and were themselves assessed but did not receive a psychiatric diagnosis (controls).
At the clinic, a therapist, who is a psychologist, a social worker or a psychiatric nurse, sees each patient. Any diagnoses made are then confirmed during a subsequent interview with a psychiatrist, with a final consensus diagnosis being made according to DSM III-R criteria. It is the practice in the clinic that patient's accompany, particularly family members, may be assessed. As part of the assessment, all attendants completed a questionnaire containing two self-esteem scales (see below). Demographic information such as age, sex, marital status, income, level of education, and current employment status, as well as the scores on the two self-esteem scales was collected from the questionnaire. Information regarding personality disorders, developmental disorders, and severity of psychosocial stressors was collected from the patients' files. The gathered data from patients and control subjects was analysed separately.
Two well-recognised patient-completed questionnaires were used to measure self-esteem. These were the Janis and Field Social Adequacy Scale (JF Scale) and the Rosenberg Self-Esteem Scale (Rosenberg Scale). The JF Scale consists of 23 self-rating items, which measure anxiety in social situations, self-consciousness, and feelings of personal worthlessness. The maximum score is 115, and a higher score reflects increased self-esteem. Reliability estimates based on the Spearman-Brown formula and split-half reliability estimates for this scale are 0.91 and 0.83, respectively.
The Rosenberg Scale measures global self-esteem and personal worthlessness. It includes 10 general statements assessing the degree to which respondents are satisfied with their lives and feel good about themselves. In contrast to the JF Scale, a decreased score reflects increased self-esteem. In the original report, Rosenberg quoted a reproducibility of 0.9 and a scalability of 0.7. The Rosenberg Scale has previously been validated in other studies [52, 53]. It is the most widely used scale to measure global self-esteem in research studies.
These two scales differ from each other in that the JF Scale measures multidimensional self-concept, while the Rosenberg Scale measures global self-esteem.
Analysis of variance (ANOVA) was used to examine the data. The two measures of self-esteem were considered as dependent variables, and all other variables, such as age, sex, income, and history of alcohol abuse were considered independent variables or factors. If the result of one way ANOVA showed statistically significant difference between means of the groups, the Student-Newman-Keuls test for multiple comparisons was applied. The Levene test was used to examine the homogeneity of variances, a main assumption in ANOVA.
Multifactorial ANOVA, analysis of covariance (ANCOVA), and Pearson correlation coefficients, was also applied in some cases. Multifactorial ANOVA was applied to control the variances related to the other factors and to measure interaction between the factors. ANCOVA is an extension of ANOVA that allows the removal of additional sources of variation from the error term, thus enhancing the power of the analysis. This test is also used to control for the effects of a third variable (covariate). Pearson correlation coefficient was used to quantify the relationship between two or more variables. It measures the strength and indicates the direction of the relationship .
Correlation between Self-Esteem Scales
In the current study, the correlation coefficient between the two self-esteem scales was -0.72. This strong correlation between two scales suggests that they measure similar overlapping concepts.
The sample of patients was divided into two groups of males and females. Female patients had significantly lower self-esteem compared to males on both the JF scale (mean in females 59.50 ± 18.72 vs. 65.93 ± 18.23 in males; F1,847 = 24.91, p < 0.0001) and the Rosenberg scale (mean in females 5.22 ± 2.91 vs. 4.71 ± 2.81 in males; F1,785 = 6.17, p < 0.01).
The patients' marital status was assigned to one of seven groups, namely never married, married, separated, divorced, widowed, common-law, and other status. No two groups were significantly different at the 0.05 level of significance on the JF Scale. However, with the Rosenberg scale, married patients had significantly higher self-esteem compared to never married patients (F6,776 = 2.71, p < 0.01). The difference did not remain significant after adjusting for age with ANCOVA (F6,775 = 0.77, p = 0.59). Thus, our study does not demonstrate that marital status affected the self-esteem of psychiatric patients.
Patients were divided into six groups according to their employment status (employed full time; employed part time; housewife or househusband; unemployed; student; retired). The results of the JF scale showed that retired patients on average had significantly higher self-esteem compared to other groups (F5,832 = 2.48, p < 0.05). However, this difference did not remain statistically significant after adjusting for age (P = 0.19). With the Rosenberg scale employed patients had a significantly higher self-esteem than unemployed patients (F5,772 = 3.97, p < 0.01) This difference remained statistically significant after adjusting for age using ANCOVA (p < 0.05) or adjusting for sex using two way ANOVA (p < 0.05). Of interest was the finding that employed patients had significantly higher self-esteem compared to patients who were students (p < 0.05).
With the JF scale scores there were no significant differences between groups. With the Rosenberg scale, patients whose annual family income was between $40,000 to $50,000 showed significantly higher self-esteem than those with an annual family income of less than $5,000 (F7,660 = 2.37, P = 0.02). The correlation coefficients between family income and either scales were low, but statistically significant (r1 for the JF scale was 0.11, p < 0.01; r2 for the Rosenberg scale was -0.15, p < 0.001). Again, these findings suggest a possible weak relationship between self-esteem of psychiatric patients and family income.
Psychosocial Stressors – Acute and Chronic
Psychiatric patients were divided into five groups based upon the severity of their acute psychosocial stressors as recorded at their initial interview. These five levels were none, mild, moderate, severe, and extreme. The results of ANOVA showed no statistically significant difference between any of these groups, for either scale.
Patients were also divided into the same five groups based on the severity of enduring psychosocial stressors, as assessed at their initial interview. The results of the JF scale show no statistically significant difference between the groups (F4,831 = 1.64, p = 0.15). However, with the Rosenberg scale, patients who experienced severe or extreme enduring stressors had significantly lower self-esteem than patients who experienced none, mild, or moderate enduring stressors (F4,774 = 3.44, p = 0.004).
Presence of Psychiatric Disorders
The level of self-esteem was compared between normal and psychiatric patients. Psychiatric patients had significantly lower self-esteem compared to controls (p < 0.001). The amount by which self-esteem was lowered differed significantly between different diagnostic groups. However, presence of any psychiatric disorders lowered self-esteem.
Relative Importance of Different Factors
Significant difference at the 0.05 level of significance was observed for four factors on both scales of self-esteem: presence of psychiatric disorder, age, sex, and educational status. To compare the amount of variance due to each factor, multifactorial analysis of variance was performed. Among these factors, the factors of presence of psychiatric disorder and age had the strongest effect with both the JF scale (p < 0.001) and Rosenberg scale (p < 0.001). On the basis of their relative strength, the remaining factors are ranked in a decreasing order as sex (p < 0.001), and educational status (p = 0.01) for the JF scale, and educational status (p = 0.003) and sex (p = 0.007) for the Rosenberg scale.
The present study examined the relationship between self-esteem and several demographic and psychosocial factors in psychiatric patients. This is the largest study to date in psychiatric patients and is unique in using more than a single scale to assess self-esteem in multiple psychiatric diagnoses. Nonetheless, before discussing the results it is important to mention that some of the measured factors, such as severity of psychosocial stressors, educational status, and employment status were assessed on non-standardized scales. Thus, the applicability of these results in other populations may be uncertain.
Self-Esteem and Age
In non-psychiatric populations, it is clear that self-esteem is stable over long periods, in a similar manner to personality traits . It has also been shown that self-esteem is correlated with age, although the exact relationship between self-esteem and age is uncertain. While Bloom  found a curvilinear relationship between age and self-esteem, with self-esteem reaching a peak in the 40–49 age group, most other researchers have found self-esteem to remain relatively stable or to increase at older ages [6, 7]. Consistent with these studies, a general pattern of increase of self-esteem with age was observed in psychiatric patients that seem to be independent on type of their disorders.
Self-Esteem and Gender
There is a substantial literature in non-psychiatric patients showing that males have a higher self-esteem than females (e.g., 1–3). It is not clear if this difference is a trait, is related to the cultural aspects of society, or is a combination of several factors. Cultural factors are likely to play some role at least, since over the past 30 years the self-esteem of women appears to be decreasing . Most researchers do not believe that these observed difference between self-esteem of males and females are inherent. The observed difference has been explained in several ways, including the way parents and teachers train and nurture children , the way parents communicate with each other , the expectations of society regarding the definition of what makes a successful man or woman , and the different social roles for males and females [60, 61]. It has been suggested that the differences between the self-esteem of males and females are likely to diminish as views about women and men's roles continue to change . However, there are no longitudinal studies examining whether the self-esteem of women has changed during the last few decades.
In terms of psychiatric patients, our findings show that male patients had higher levels of self-esteem than females. This difference was less prominent when patients had a major depressive disorder, presumably due to the effects of the depressive disorder itself on self-esteem which dampen the observed self-esteem differences in non-depressed patients.
Self-Esteem and Marital Status
A previous study has reported significantly lower global self-esteem in divorced or separated mothers, compared to married mothers . In contrast, we found that the self-esteem of the psychiatric patients in our sample was not affected by their marital status. The reason for this discrepancy remains unclear. However, we propose that marital status today have less effect on self-esteem than it once had due to a change in society's attitude towards divorce.
Self-Esteem and Education
Low self-esteem has been associated with poor academic experiences . On the other hand, higher levels of educational attainment lead to higher status jobs and indirectly have been felt to have a positive impact on self-esteem . Therefore, higher educational attainment may have a direct impact on self-esteem or an indirect effect via higher occupational status or financial status usually accompanying the higher educational attainment.
The results of the present study showed that patients with higher educational attainment had higher self-esteem compared to those with lower educational attainment. This finding supports the relationship between greater educational achievement and higher self-esteem.
Current Employment Status and Self-Esteem
Although there are many confounding variables such as age, previous occupational status, and degree of social support, generally a significant correlation has been found between low self-esteem and unemployment in non-psychiatric population [20, 63, 64]. Similarly, the results of the present study show that employed patients had significantly higher self-esteem compared to unemployed patients. Since the self-esteem of students was significantly lower than that of employed patients, it is possible that the factor of employment reflect the effects of financial security, respect, social position, and prestige on the self-esteem of individuals. It has also been found that in psychiatric patients self-esteem is significantly affected by job satisfaction .
Self-Esteem and Income
There has been some previous work, particularly in women, suggesting that higher income is associated with higher self-esteem [66, 67]. The findings from the present study suggest that patients with higher personal income, as well as those with higher family income, tend to have higher self-esteem compared to patients with low family or personal income. However, it should be noted that these differences were only significant with one of the two self-esteem measures, and between the groups on the opposite ends of the income scale. Thus, our findings do not lend strong support to suggestions that income strongly affects self-esteem in psychiatric patients.
Self-Esteem and Psychosocial Stressors
Most researchers agree that there is a complex link between self-esteem and psychosocial stressors. Low self-esteem, at least in part, is related to adverse social circumstances such as unemployment [23, 63] and life stressors such as divorce . Different studies reported that negative interaction with family members, lack of close confiding relationship, and early loss of mother or early inadequate parenting were associated with lower self-esteem [9, 69, 70]. On the other hand, positive life changes can lead to higher self-esteem .
In the present study, we considered two aspects of psychosocial stressors on the self-esteem of psychiatric patients, their onset and their severity. Interestingly, our results demonstrate that acute psychosocial stressors had no significant effect on the self-esteem of patients. However, the longer the severe stressor, the more destructive the effects are on self-esteem. This was shown by the finding that patients who experienced extreme or severe enduring psychosocial stressors had significantly lower self-esteem than those not experiencing such stressors. In a similar manner, low self-esteem may impact unhealthy lifestyles , which itself can also increase psychosocial stressors.
We found that many factors are related to lowered self-esteem in psychiatric patients. Of these, the most significant were the presence of a psychiatric disorder, the exact psychiatric diagnosis, the age of the patients, and the gender of the patient. Educational achievement, income, and employment status also had effects on the self-esteem of psychiatric patients. However, it is hard to separate these latter effects from each other. Among other factors, marital status had little or no effect on self-esteem. We also found that severe enduring psychosocial stressors had an effect on self-esteem. In general, we found that the effects of the demographic factors and psychosocial stressors on the self-esteem of psychiatric patients were similar to their effects on self-esteem of the non-psychiatric population reported in the literature.
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