Stressful life events, hopelessness, and suicidal intent in patients admitted with attempted suicide in a tertiary care general hospital

Suicidal Behavior and Its Association With Psychological Distress, Coping Mechanisms, and Resilience: A Cross-Sectional Study

Introduction Recent literature reveals that psychological factors such as resilience and coping mechanisms can act as buffers against suicide risk. Indian literature on the interplay between psychological risk and protective factors of suicidal behavior is scarce. Methods A cross-sectional descriptive study was done among suicide attempters in a tertiary care hospital in Southern India. A semi-structured proforma was used to obtain sociodemographic data and suicide attempt characteristics. Suicide intent, lethality, stressful life events, perceived stress, subjective distress, coping strategies, and resilience were recorded using standard rating scales. Inferential analyses were carried out with p≤ 0.05 set as statistical significance. Results Pesticide poisoning (46.7%) was the most common mode of suicide attempt. Significant gender differences emerged in the mode of suicide attempt, coping strategies, and resilience. Depression (48.7%) was the most common psychiatric comorbidity. Increased perceived stress was associated with the presence of psychiatric comorbidity, past history of suicide attempts, and high-intent suicide attempts. Maladaptive coping strategies were associated with substance abuse and a history of past suicide attempts. Low resilience levels were associated with hanging attempts, psychiatric or substance use disorder comorbidity, past history of suicide attempts, high-intent suicide attempts, and less lethal suicide attempts. Conclusion Perceived stress levels, coping strategies, and resilience have significant relationships with suicidal behavior and act as avenues for suicide prevention efforts.

Pattern of encounters to emergency departments for suicidal attempts in France: Identification of high-risk days, months and holiday periods

INTRODUCTION

Seasonal change in patterns of suicidal attempts is not well known in France and may differ from other western countries. We aimed to determine the peak times (days, months and holiday periods) of suicidal attempts in France.

METHODS

We carried out a multicentre retrospective epidemiological study, using data from the Organization for Coordinated Monitoring of Emergencies (OSCOUR®) network. We aggregated daily data from January 1, 2010, to December 31, 2019. Variations in suicidal attempts on specific days were investigated by comparing their frequencies (ad hoc Z-scores).

RESULTS

114,805,488 ED encounters were recorded including 233,242 ED encounters regarding suicidal attempts. Men accounted for 45.7%. A significantly higher frequency of ED encounters for suicidal acts were found on Sundays in the months of May-June for both sexes and on New Year's Day for all genders and age groups. An increased risk was also noted on July 14th (National Day) and June 22nd (Summer Solstice). A protective effect was noted on the day after Valentine's Day, on Christmas Day and Christmas time (in particular December 24 and 26).

CONCLUSION

Sundays, June, New Year's Day were at increased risk of suicidal attempts in France requiring a strengthening of prevention.

The role of premeditation in suicide: Identifying factors associated with increased planning among suicide decedents

INTRODUCTION

Suicide premeditation is a critical factor to consider when assessing suicide risk. Understanding which individuals are more or less likely to plan their suicidal behavior can shed light on how suicidal thoughts turn into actions.

METHOD

The present study used psychological autopsy data to identify factors associated with level of premeditation among 131 adults who died by suicide.

RESULTS

Logistic regression analyses indicated that suicide decedents with higher premeditation scores had higher odds of being diagnosed with a depressive disorder and choosing a violent suicide method, specifically a firearm. Individuals with lower premeditation scores had higher odds of being diagnosed with a polysubstance use disorder.

CONCLUSION

Suicide decedents exhibiting greater premeditation before their deaths were different in several ways from suicide decedents exhibiting less premeditation. A better understanding of suicide premeditation can ultimately aid in the development of improved risk assessments and targeted safety interventions for those struggling with suicidal thoughts.

Factor Structure and Validity of the Suicidal Narrative Inventory Among Indian Adults

Background: The suicidal narrative is a presuicidal state comprising several risk factors for suicide and is assessed using the Suicidal Narrative Inventory (SNI). Aims To assess the internal structure, reliability, and validity of SNI among Indian adults. Methods Between August 2020 and January 2021, the SNI, together with other self-report measures, was administered to adult respondents using an online anonymized questionnaire. Confirmatory factor analysis (CFA) was carried out to test the factor structure of the SNI. Results Usable responses were obtained from 302 participants (Mage = 43.5 ± 17.9 years, 53.6% female). The results of an eight-factor CFA of the SNI resulted in good model fit (χ2 [637] = 969.73, p < .001, comparative fit index = 1.00, root mean square error of approximation = .04). Internal consistencies of SNI subscale scores ranged from acceptable to excellent (range α = .67-.92). Most subscales significantly converged with other measures although these associations were minimal for the goal disengagement and reengagement subscales. Limitations The use of an online survey method to collect data introduced sampling bias. Conclusion The eight-factor CFA of the SNI, among Indian adults, was consistent with prior data. Our findings provide preliminary support for the use of SNI to assess the suicidal narrative construct among Indian adults.

Mental health and suicide risk among homosexual males in Bangladesh

BACKGROUND

Homosexual individuals are at high risk of suicide, but there is a shortage of data from developing countries to confirm this. Estimates on mental health and suicide risk among male homosexuals in Bangladesh are needed to generate awareness and to plan services accordingly.

METHOD

We assessed mental health and suicidal behavior of 102 self-identified homosexual males from a community-based organization that works with the sexual minority population.

RESULTS

One-third of the participants (32.4%) had experienced attempted suicide, and almost half (47.1%) had a history of suicidal ideation and self-harm (40.2%). Compared to a heterosexual sample, homosexual males had poorer mental health as they scored higher on Beck Hopelessness Scale (Cohen's d = 0.29) and General Health Questionnaire (GHQ) (Cohen's d = 0.57). The results revealed positive correlations between self-harm, suicidal ideation and suicide attempt scores. Participants with history of suicide attempt, suicide ideation and self-harm reported worse general health, more social dysfunction, and severe depression than those without such history.

CONCLUSION

Suicidality and mental health conditions among homosexual males in Bangladesh have appeared to be alarming. Given the concerns, we offer some recommendations for practitioners and social workers who are serving this population in Bangladesh.

Early marriage, stressful life events and risk of suicide and suicide attempt: a case-control study in Iran

BACKGROUND

Early Marriage (EM) and associated Stressful Life Events (SLEs) and consequences such as psychological and physical well-being issues can lead to suicide and suicide attempts (SA). The study aimed to investigate the risk of suicide and SA among early married people who experienced SLEs.

METHODS

A case-control study was conducted based on the registry for suicide in Malekan county in Iran during 2016-18. Cases included 154 SAs and 32 suicides. Simultaneously, 201 outpatients from the emergency department were chosen as controls. Holms and Rahe life event questionnaire was used to assess SLEs. Sub-group analysis (Mantel-Haenszel) by sex and age groups and multiple logistic regression were used to calculate adjusted Odds Ratios (ORs) with 95% Confidence Intervals (CIs) for the association between EM and suicide risk after adjusting for the potential confounders.

RESULTS

The proportion (female vs male) of EM among suicides, controls, and SAs was 31.25% (18.7 vs 12.5%), 15.92% (11.9 vs 4.0%), and 13.0% (11.7 vs 1.3%), respectively. In subgroup analyses by sex, EM was associated with an increased risk of suicide in both females and males 2.64 and 2.36 times, respectively. Likewise, subgroup analysis by age groups revealed that EM increased suicide risk in subjects aged 10-15 years, while no association was found for age groups of 26-40 and > 40. After adjusting for the potential confounders, EM (OR: 3.01; 95% CI: 1.15 -7.29), financial problems (OR = 4.50; 95% CI: 1.83 -9.07), and family problems (OR = 2.60; 95% CI: 1.19-9.59), were associated with an increased risk of suicide. However, no association was found between EM, various types of SLEs, and the risk of SA.

CONCLUSIONS

We found EM and SLEs were correlated with suicide risk, while no evidence found that EM increased the risk of SA. Progress in reducing EM and addressing its serious consequences can occur by a stronger political commitment and by sharing the experiences and voices of the early married. Our study provided preliminary findings to guide future studies; however, methodological and longitudinal studies are needed to understand and address the effect of EM on suicidal behaviors.

Why Do People Live or Die? A Retrospective Study from a Crisis Intervention Clinic in North India

BACKGROUND

Suicide results from complex interactions of various risk factors-reasons for dying (RFD)-and protective factors-reasons for living (RFL). Suicide is not necessarily a wish to die but may be an appeal for help. We analyzed RFD and RFL in persons who had attempted suicide, through their clinical records at a Crisis Intervention Clinic (CIC).

METHODS

We retrospectively analyzed demographic and clinical data, and classified RFD and RFL, among patients with either ideas or attempt of suicide registered at our CIC (N = 83). Using two open-ended questions from the clinical history data, we derived their RFD or RFL; (n = 53) completed these questions regarding RFD-RFL.

RESULTS

In the total sample, males and females were equally represented and educated, but males were significantly older. Most common diagnosis was nonpsychotic mood disorder. Commonest mode of suicide attempt was hanging. Family conflict vs. family responsibility, hope vs. hopelessness, stressful life events, and negative cognitions about the self and the world were important RFD. RFL included feeling responsible, love for family and for self, hope, career success, and religious beliefs.

CONCLUSION

RFD and RFL could both be grouped in similar categories related to family, career, hope, etc.

The Role of Perceived Social Support in the Association Between Stressful Life Events and Suicidal Behavior

Background: Suicide is a serious public health concern for which there have been well-established protective and risk factors reported in literature. There is a lack of evidence on the indirect effects of other variables on these factors. Specifically, the association between stressful life events and suicidal behavior may be affected by perceived social support, but its role in this association is largely uninvestigated. Objectives: Thus, this paper aims to explore the role of perceived social support in the association between stressful life events and suicidal behavior. Perceived social support will be explored as a mediator and as a moderator in this association. Methods: Data were obtained from the Determinants of Suicidal Behavior Conventional and Emergent Risk (DISCOVER), a study conducted to identify risk factors of suicidal behavior. The study participants are individuals with suicide attempts admitted to hospital. Participants (n = 343) were recruited from hospital setting. Suicidal behavior was measured using two outcomes (1) the occurrence of a suicide attempt (2) level of suicide intent as measured by the Pierce Suicide Intent Scale. Perceived social support was measured using the Sarason Social Support Questionnaire. Results: Stressful life events were significantly associated with suicide attempts (OR 1.440, 95% CI 1.440, 1.682, p < 0.001) and perceived social support (B -0.785, 95% CI -1.501, -0.068, p = 0.032). There was no significant mediation effect by perceived social support in the association between stressful life events and suicide attempts (Sobel's test statistic 1.64, p = 0.100). Perceived social support did not moderate the relationship between stressful life events and suicide attempts [(OR 1.007, 95% CI 0.987, 1.027, p = 0.514] or the relationship between stressful life events and level of suicidal intent (B -0.043, 95% CI -0.132, 0.046, p = 0.343). Conclusion: Stressful life events are associated with increased risk of suicide attempts. The study also identified an inverse relationship between stressful life events and perceived social support. These associations were independent of perceived social support. This study highlights the effects of stressful life events on suicide risk is not affected by perceived social support, requiring further investigation into measures to reduce the impact of social stressors on people with risk of suicide.

The Role and Comparison of Stressful Life Events in Suicide and Suicide Attempt: A Descriptive-Analytical Study

Background: In recent years, suicide in Iran has become a growing concern. Although stressful life events (SLEs) are increasing as a global prevalence, suicide attempters (SAs) and the impact and association between suicide and SLEs are poorly understood. Objectives: This study aimed at examining the role and effect of SLEs in suicides and SAs. Methods: This descriptive-analytical study was performed during 2014 to 2016 based on 186 records (through random quota sampling) of suicidal behaviors (SBs), including 154 SAs and 32 suicide cases in Malekan County, East Azerbaijan, Iran. A valid semi-structured Life Event questionnaire (LEQ) with 43-items of common types of SLEs in the last year before SBs was used by trained interviewers through single sitting and face to face interviews. The point-biserial correlation and multiple logistic regression analysis were utilized to estimate the adjusted odds ratios and confidence intervals for suicide risk. Results: A significant correlation was found between SLEs scores and suicide (R = 0.739). Comparing SLEs types between the two groups of SAs and suicides, it was revealed that the highest odds ratios were related to financial problems (OR = 11.9; 95% CI = 4.00 - 35.85), early marriage (OR = 4.97; 95% CI = 1.68 - 14.65), exposure to new conditions (OR = 8.79; 95% CI = 1.3 - 59.22), and family conflicts (OR = 2.53; 95% CI = 1.23 - 6.53), respectively. Conclusions: SLEs are most strongly associated with committing suicide. Suicide determinants are different from SA. SLEs management by health systems is imperative to improve life skills in suicide prevention.

Hopelessness and its correlates with clinical outcomes in an outpatient setting

INTRODUCTION

This study examined whether patients with hopelessness and those without may significantly differ regarding their main presentations and clinical course in a large Italian population.

METHODS

The recruited sample included 583 currently euthymic outpatients with major affective disorders. The Beck Hopelessness Scale (BHS) assessed hopelessness using a cutoff score of 9 or higher. Participants were categorized based on the presence/absence of hopelessness. A binary logistic regression analysis -accounting for age and gender and considering history of psychotherapy, emotional/physical abuse, depressive symptoms, Toronto Alexithymia Scale (TAS) total score, difficulties identifying and communicating feelings as potential predictors- was carried out in order to detect the variables associated with hopelessness.

RESULTS

Individuals with hopelessness, compared to those without, were more likely to be older (p=0.005), females (p=0.01), to have a unipolar depressive disorder (p≤0.05), be prescribed antidepressants and psychotherapy in the past (p=0.001 and p≤0.05). Moreover, individuals with hopelessness scored higher on the Montgomery-Asberg Depression Rating Scale (p≤0.05) and on the emotional (p=<0.001), physical abuse (p≤0.01) and physical neglect (p≤0.05) subscales of the Childhood Trauma Questionnaire - Short form, and reported more difficulties identifying (p≤0.001) and communicating feelings (p≤0.001) than those without hopelessness. The multivariate analysis showed that having difficulties identifying feelings is independently associated with hopelessness.

DISCUSSION

These findings indicate that individuals with difficulties identifying feelings are at higher risk of hopelessness and of negative outcomes. Further studies need to explore the impact of alexithymia on hopelessness and clinical outcomes in the lifetime illness course.

Alcohol consumption and suicide risk in medical internship: A Peruvian multicentric study

INTRODUCTION AND AIM

Suicide and harmful alcohol consumption are major health problems, especially in medical students. This study aimed to evaluate the association between risk for alcohol abuse and suicide risk in medical interns of Peruvian hospitals.

DESIGN AND METHODS

We conducted a multicentre cross-sectional study in medical interns from 18 Peruvian hospitals. We measured suicide risk, risk for alcohol abuse, depression and self-esteem using the Plutchik Suicide Risk Scale, CAGE, Zung Self-Rating Depression Scale and Rosenberg Self-Esteem Scale, respectively. We used χ² and Student t-tests for descriptive analysis. To evaluate the association between risk for alcohol abuse and suicide risk we generated crude and adjusted Poisson regression models with robust variance and estimated prevalence ratios with 95% confidence intervals.

RESULTS

We surveyed 433 medical interns. The prevalence of suicide risk and risk for alcohol abuse was 19.6% and 27.5%, respectively. We found significant differences in suicide risk according to age (P < 0.001), region of origin (P = 0.002), with whom the participant lived (P < 0.001), university of origin (P = 0.040), type of hospital (P = 0.042), family history of attempted suicide (P = 0.043), self-esteem level (P < 0.001) and alcohol consumption (P < 0.001). In the adjusted model, age (PRa: 1.11, 95% confidence interval 1.05-1.17) and risk for alcohol abuse (PRa: 7.60, 95% confidence interval 4.46-12, 96) were associated with suicide risk.

DISCUSSION AND CONCLUSIONS

Two out of 10 medical interns had a positive screening for suicide risk. Age and especially risk for alcohol abuse were the associated variables.

Sensory profiles in unipolar and bipolar affective disorders: Possible predictors of response to antidepressant medications? A prospective follow-up study

INTRODUCTION

Sensory processing patterns have been proposed as a stable dimension able to characterize individuals with major affective disorders, but to what extent specific impairments in sensory processing may be involved in the pathophysiology of these conditions is poorly understood. We aimed to explore which sensory profiles may better respond to psychoactive medications, with particular regard to antidepressants, according to depression, alexithymia, and hopelessness levels.

METHODS

A total of 402 outpatients who received maintenance treatment and were in stable psychopathological conditions were recruited and completed the Adolescent/Adult Sensory Profile (AASP), Toronto Alexithymia Scale (TAS-20), second version of the Beck Depression Inventory (BDI-II), and Beck Hopelessness Scale (BHS) according to a longitudinal prospective study design including three time points of measurements.

RESULTS

Subjects with abnormally reduced sensory seeking, hypersensitivity, enhanced sensory avoidance, and lower ability to register information better responded to antidepressant medications according to their reduced depression levels. Similarly, participants with lower registration better responded to antidepressants as reported by lower hopelessness levels. Regression analyses revealed that the use of antidepressants was the first variable able to predict depression, hopelessness, and alexithymia levels at baseline, and after three and six months of treatment, respectively, but the pattern of sensory sensitivity contribute to the prediction of depression and hopelessness. This pattern together with low registration predicted changes in alexithymia levels.

LIMITATIONS

The study was limited by the modest sample size at the follow-up assessment points.

DISCUSSION

Exploring sensory processing patterns may provide intriguing insights into specific illness characteristics and treatment response.

The Relationship between Hopelessness and Clinical Characteristics of Hospitalized Patients with Recent Suicide Attempt

This study aimed to assess hopelessness in 170 hospitalized individuals with recent suicide attempt and examine its association with patients' characteristics, with a view to improving awareness in health professionals and especially nurses, who are among the first to take care of these patients. Participants completed Beck Hopelessness Scale and Beck Depression Inventory. More than half (51.18%) experienced moderate-to-severe hopelessness. A multiple linear regression analysis showed that age, attempted suicide method, past suicide attempt, and psychiatric diagnosis contributed statistically significantly to hopelessness prediction. Hopelessness assessment could efficiently help health professionals to minimize both inpatient suicide and suicidal acts after discharge.

Features for medically serious suicide attempters who do not have a strong intent to die: a cross-sectional study in rural China

OBJECTIVE

Previous studies have implied that there were many Chinese suicide attempters who did not want to die by suicide. In the current study, we explored the factors which were associated with low levels of suicide intent. We also examined features for medically serious suicide attempters who do not have a strong intent to die in rural china.

DESIGN

Cross-sectional study.

SETTING

The interviews occurred between May 2012 and July 2013 in 13 rural counties in Shandong and Hunan provinces, China.

PARTICIPANTS

Subjects were 791 medically serious suicide attempters whose injury and wounds were so serious they required hospitalisation or immediate medical care.

RESULTS

The results supported that less years of education (β=-0.11, p=0.037), religious beliefs (β=1.20, p=0.005), living alone (β=1.92, p=0.017), negative life events (β=0.29, p=0.003), low levels of impulsivity (β=-0.10, p=0.013) and mental disorders (β=2.82, p<0.001) were associated with higher levels of suicide intent.

CONCLUSION

Results imply that there are some medically serious suicide attempters with a higher education and/or exhibit impulsivity who do not want to die by suicide. These findings can inform practice to prevent suicide in rural China.

The Impact of Negative Life Events on Attempted Suicide in Rural China

This study aims to explore the impact of negative life events (NLEs) on attempted suicide in a Chinese cultural setting. The sample comprised 791 suicide attempters and an equal number of controls matched on age, sex, and location from selected rural counties in China. Conditional logistic regression model was used to examine the association between NLEs and suicide risk. The impact of NLEs on attempted suicide was further examined using regression-based method to explore its mediation effect. The types of NLEs that were most likely to precede a suicide attempt in rural sample included the events in marriage/love, family/home, and friend/relationship. Rural women were more likely to experience more interpersonal conflicts than rural men. Approximately 75.6% of suicide attempters had experienced at least one NLE, and NLEs were strongly associated with attempted suicide. Total effect (0.676), direct effect (0.501), and the total indirect effect (0.301) of NLEs on suicide attempts were significantly mediated by hopelessness and depression. NLEs play a crucial role in predicting suicidal attempt in rural China, and they are mediated by depression and hopelessness.

A self-harm series and its relationship with childhood adversity among adolescents in mainland China: a cross-sectional study

BACKGROUND

Self-harm (SH) is an emerging problem among Chinese adolescents. The present study aimed to measure the prevalence of SH behaviours and to explore the relationship between childhood adversity and different SH subtypes among Chinese adolescents.

METHODS

A total of 5726 middle school students were randomly selected in three cities of Anhui province, China, using a stratified cluster sampling method. SH was categorized into five subtypes (highly lethal self-harm, less lethal self-harm with visible tissue damage, self-harm without visible tissue damage, self-harmful behaviours with latency damage and psychological self-harm). Multivariate logistic regression was used to explore the relationships between childhood adversity and different subtypes of adolescent SH.

RESULTS

The prevalence rates of highly lethal self-harm, less lethal self-harm with visible tissue damage, self-harm without visible tissue damage, self-harmful behaviours with latency damage and psychological self-harm were 6.1, 20.4, 32.0, 20.0 and 23.0%, respectively. Childhood sexual abuse and physical peer victimization were associated with each SH subtype with adjusted odds ratios (AORs) ranging from 1.23 to 1.76. Highly lethal self-harm was associated with childhood physical peer victimization, sexual abuse, emotional abuse, and emotional neglect. The less lethal SH subtypes (i.e., less lethal self-harm with visible tissue damage, self-harm without visible tissue damage, self-harmful behaviours with latency damage and psychological self-harm) were associated with childhood peer victimization, family life stress event scores and childhood sexual abuse.

CONCLUSIONS

A high prevalence of SH exists among Chinese adolescents. The association of childhood adversity with SH merits serious attention in both future research and preventive interventions.

Factors predicting recovery from suicide in attempted suicide patients

AIMS AND OBJECTIVES

The aim of this study was to explore the factors predicting suicide recovery and to provide guidance for healthcare professionals when caring for individuals who have attempted suicide.

BACKGROUND

The high rate of suicide is a global health problem. Suicide prevention has become an important issue in contemporary mental health. Most suicide research has focused on suicidal prevention and care. There is a lack of research on the factors predicting suicidal recovery.

DESIGN

A cross-sectional design was adopted.

METHODS

A correlational study with a purposive sample of 160 individuals from a suicide prevention centre in southern Taiwan was conducted. The questionnaires included the Brief Symptom Rating Scale-5, Suicidal Recovery Assessment Scale and Beck Hopelessness Scale. Descriptive statistics and linear regressions were used for the analysis.

RESULTS

The mean age of the participants was 40.2 years. Many participants were striving to make changes to create a more stable and fulfilling life, had an improved recovery from suicide and had a good ability to adapt or solve problems. The linear regression showed that the Beck Hopelessness Scale scores (ß = -.551, p < .001) and Brief Symptom Rating Scale-5 (ß = -.218, p = .003) and past suicidal behaviour (ß = -.145, p = .008) were significant predictors of individuals' recovery from suicide. They accounted for 57.1% of the variance.

CONCLUSIONS

Suicidal individuals who have a lower level of hopelessness, a better ability to cope with their mental condition and fewer past suicidal behaviours may better recover from suicide attempts.

RELEVANCE TO CLINICAL PRACTICE

The nurses could use the results of this study to predict recovery from suicide in patients with attempted suicide.

Riesgo suicida según la tríada cognitiva negativa, ideación, desesperanza y depresión

Objetivo: establecer la relación entre ideación suicida, desesperanza, tríada cognitiva negativa y depresión, como evidencia del modelo cognitivo del riesgo suicida. Método: estudio empírico-analítico con diseño descriptivo, correlacional y comparativo. Las variables fueron medidas con los inventarios BDI-II, PANSI e ITC y la escala BHS. La muestra final estuvo constituida por 90 personas de ambos sexos, con una media de edad de 24,2 años (DT = 8,65 años) pertenecientes a diversos niveles socioeconómicos, con estudios universitarios, principalmente. Resultados: se encontraron correlaciones estadísticamente significativas entre ideación suicida, desesperanza, depresión y la tríada cognitiva negativa. Las diferencias fueron significativas entre los grupos depresivos y no depresivos, con grandes efectos para las tres variables cognitivas. Interpretación y conclusiones: estos resultados constituyen nueva evidencia del modelo cognitivo planteado acerca de la relación entre las variables depresión, tríada cognitiva negativa, ideación suicida y desesperanza, tal como se ha propuesto en distintas revisiones sobre cognición negativa y suicidio. Se analizaron las limitaciones del estudio en cuanto el reducido tamaño muestral y las diferencias entre sexos para depresión ante estresores específicos, y las variaciones por grupos de edades en el riesgo suicida de los jóvenes.