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Featured researches published by Aini Ostamo.


Acta Psychiatrica Scandinavica | 1996

Mental disorders and comorbidity in attempted suicide

Kirsi Suominen; Markus Henriksson; Jaana Suokas; E. Isometsä; Aini Ostamo; Jouko Lönnqvist

The present study examined the prevalence and comorbidity of mental disorders according to DSM‐III‐R among male and female suicide attempters. A systematic sample of 114 patients from consecutive cases of attempted suicide referred to a general hospital in Helsinki between 1 January and 31 July 1990 was interviewed. In 98% of the cases at least one Axis I diagnosis was made. Depressive syndromes were more common among females (85%) than males (64%), and alcohol dependence was more common among males (64%) than females (21%). A high proportion of suicide attempters (82%) suffered from comorbid mental disorders. Comorbidity appears to play an important role in parasuicide.


Social Psychiatry and Psychiatric Epidemiology | 2001

Excess mortality of suicide attempters

Aini Ostamo; Jouko Lönnqvist

Abstract  Background: Excessive mortality of suicide attempters has emerged from many follow-up studies. Completed suicide is the main cause of excess deaths, but the increased risk of deaths from other unnatural and natural causes is also of major public health concern. We lack follow-up studies of the different causes of death in cohorts of suicide attempters. The present study aimed to determine the mortality by suicide and other causes of death and to investigate risk factors. Methods: This mean 5.3-year follow-up study was based on an unselected cohort of suicide attempts by both violent and non-violent methods, treated in hospitals in a well-defined urban catchment area in Helsinki. In total, 2782 patients aged 15 years and over admitted to the emergency rooms after suicide attempt between 1989 and 1996 were included in the follow-up analysis. Standardised mortality ratios (SMR) for suicide, disease, accident, homicide, and undetermined death were calculated. Results: Mortality from all causes was 15 times higher than that expected among men and nine times higher in women. SMRs in men were 5402 (95% CI 4339–6412) for suicide, 2480 (95% CI 925–4835) for homicide, and 11,139 (95% CI 6884–16,680) for undetermined cause, and for women 7682 (95% CI 5423–9585), 3763 (95% CI 52–5880) and 15,681 (95% CI 6894-22,294), respectively. Fifteen percent of all suicide attempters died during the average 5.3-year follow-up of the index attempt. Deaths from suicide accounted for 37% of all excess deaths in men and 44% in women. The mortality ratio was highest during the 1st follow-up year. The total number of lost years of life among the 413 suicide attempters who died during follow-up was 13,883. The risk factors for all causes of death were male sex, single, retirement, drug overdose as a method, an index attempt not involving alcohol, and a repeated attempt. Conclusion: A suicide attempt indicates a severe risk of premature death, and suicide is the main cause of excess deaths. However, it appears that concentrating efficient treatment only on the most suicidal patients could prevent no more than two of five premature deaths. More effort is therefore needed to prevent the excess mortality of suicide attempters by also addressing causes of death other than suicide.


Journal of Epidemiology and Community Health | 1998

Relation between attempted suicide and suicide rates among young people in Europe.

Keith Hawton; Ella Arensman; Danuta Wasserman; A. Hultén; Unni Bille-Brahe; Tore Bjerke; P. Crepet; Eberhard A. Deisenhammer; Ad J. F. M. Kerkhof; Diego De Leo; Konrad Michel; Aini Ostamo; A. Philippe; I. Querejeta; E. Salander-Renberg; Armin Schmidtke; B. Temesváry

STUDY OBJECTIVE: To determine if there are associations between rates of suicide and attempted suicide in 15-24 year olds in different countries in Europe. DESIGN: Attempted suicide rates were based on data collected in centres in Europe between 1989 and 1992 as part of the WHO/EURO Multicentre Study of Parasuicide. Comparison was made with both national suicide rates and local suicide rates for the areas in which the attempted suicide monitoring centres are based. SETTING: 15 centres in 13 European countries. PATIENTS: Young people aged 15-24 years who had taken overdoses or deliberately injured themselves and been identified in health care facilities. MAIN RESULTS: There were positive correlations (Spearman rank order) between rates of attempted suicide and suicide rates in both sexes. The correlations only reached statistical significance for male subjects: regional suicide rates, r = 0.65, p < 0.02; national suicide rates, r = 0.55, p < 0.02. CONCLUSIONS: Rates of attempted suicide and suicide in the young covary. The recent increase in attempted suicide rates in young male subjects in several European countries could herald a further increase in suicide rates.


BMC Psychiatry | 2004

Level of suicidal intent predicts overall mortality and suicide after attempted suicide: a 12-year follow-up study

Kirsi Suominen; Erkki Isometsä; Aini Ostamo; Jouko Lönnqvist

BackgroundThe aim of this study was to comprehensively examine clinical risk factors, including suicide intent and hopelessness, for suicide and risk of death from all causes after attempted suicide over a 12-year follow-up period.MethodsA systematic sample of 224 patients from consecutive cases of attempted suicide referred to health care in four Finnish cities between 1 January and 31 July 1990 was interviewed.ResultsAfter 12 years of follow-up 22% of these patients had died, 8% by committing suicide. The only statistically significant risk factor for eventual suicide was high scores on Becks Suicidal Intention Scale. Male gender, older age, physical illness or disability and high scores on Becks Suicidal Intention Scale predicted death overall.ConclusionsFollowing attempted suicide, high intention to kill oneself is a significant risk factor for both death from all causes and suicide.


European Child & Adolescent Psychiatry | 2001

Repetition of attempted suicide among teenagers in Europe: frequency, timing and risk factors

A. Hultén; Guo-Xin Jiang; Danuta Wasserman; Keith Hawton; Heidi Hjelmeland; Diego De Leo; Aini Ostamo; E. Salander-Renberg; Armin Schmidtke

Background. Adolescents in many countries show high rates of suicide attempts and repetitions of attempts as a common feature. Attempted suicide is the best predictor of future suicide. Repetition of attempts further increases the risk of suicide. The present study sought to identify patterns and risk factors for repetition of attempts in older teenagers. Methods. Data were collected by uniform procedures in a longitudinal follow-up study in seven European centres participating in the WHO/EURO Multicentre Study on Suicidal Behaviour. Information on attempted suicide in the 15–19-year age group during the period 1989–1995 was analysed. Results. A total of 1,720 attempts by 1,264 individuals over a mean follow-up period of 204 weeks (SD 108.9) were recorded. When life-table analysis was performed, 24 % of the individuals who had previously attempted suicide made another attempt within one year after the index attempt, compared with 6.8 % of the “first-evers”, with no major gender difference. Cox regression analysis revealed that previous attempted suicide (OR 3.3, 95 % CI 2.4–4.4) and use of “hard” methods (OR 1.5, 95 % CI 1.1–2.1) were both significantly associated with repetition of attempted suicide. Stepwise Cox regression analysis showed that a history of previous attempted suicide was the most important independent predictor of repetition (OR 3.2, 95 % CI 2.4–4.4). Conclusion. For young suicide attempters, follow-up and adequate aftercare are very important if repetition and risk of suicide are to be reduced. This applies particularly to those who have already made more than one attempt.


Acta Psychiatrica Scandinavica | 1997

Hopelessness, impulsiveness and intent among suicide attempters with major depression, alcohol dependence, or both.

Kirsi Suominen; E. Isometsä; Markus Henriksson; Aini Ostamo; Jouko Lönnqvist

The present study examined differences in hopelessness, impulsiveness and suicide intent between suicide attempters with either major depression or alcohol dependence, comorbid major depression and alcohol dependence, and those without these disorders. A sample of 114 patients from consecutive cases of attempted suicide referred to a general hospital in Helsinki was interviewed and diagnosed according to DSM‐III‐R. Suicide intent was measured by the Beck Suicide Intent Scale (SIS) and hopelessness was assessed by the Beck Hopelessness Scale (HS). Impulsiveness of the suicide attempt was measured by two items of the SIS. Suicide attempters with major depression without comorbid alcohol dependence had higher suicide intent and lower impulsiveness than attempters with non‐depressive alcohol dependence. Suicide attempts may differ between subjects with major depression, alcoholism or both disorders in terms of impulsiveness and suicide intent.


Accident Analysis & Prevention | 2009

Trends in driving under the influence of drugs: A register-based study of DUID suspects during 1977–2007

Karoliina K. Ojaniemi; Tomi Lintonen; Antti O. Impinen; Pirjo M. Lillsunde; Aini Ostamo

Our aim was to describe the incidence and trends of driving under the influence of drugs (DUID) and to examine the main drug findings and their trends in suspected DUID cases in Finland. A register-based study was conducted of all suspected DUID cases during 1977-2007. The data included 31,963 DUID offenders apprehended by the police with a positive finding for illicit/licit drug impairing driving performance. Toxicological results were analyzed in blood and/or urine specimens in one central laboratory. The incidence of suspected DUID cases increased 18-fold during 1977-2007. Most of the suspects were men (89.7%). However, the male-female ratio decreased from 13.9 to 7.3. The mean age decreased from 36.2 years in 1977 to 29.9 years in 2001 but has since reincreased. Most often found substances were benzodiazepines (75.7%), amphetamines (46.0%), cannabinoids (27.7%) and opioids (13.8%). Most common illicit drugs, amphetamines and cannabinoids, started to appear at the end of the 1980s. Poly-drug findings were common (77.1%). Suspected DUID cases have increased sharply after the introduction of a zero tolerance law, especially in regard to amphetamines. DUID is an increasing problem in Finland, and needs serious attention.


Acta Psychiatrica Scandinavica | 1999

Attempted suicide and major public holidays in Europe: findings from the WHO/EURO Multicentre Study on Parasuicide

G. Jessen; B. F. Jensen; Ella Arensman; U. Bib-Brahe; P. Crepet; Diego De Leo; Keith Hawton; Christian Haring; Heidi Hjelmeland; Konrad Michel; Aini Ostamo; E. Salander-Renberg; Armin Schmidtke; B. Temesváry; Danuta Wasserman

Objective: The aim of the study was to examine the relationship between suicide attempts and major public holidays in Europe.


Social Psychiatry and Psychiatric Epidemiology | 2001

Attempted suicide rates and trends during a period of severe economic recession in Helsinki, 1989-1997.

Aini Ostamo; Jouko Lönnqvist

Background: This study investigated attempted suicide trends during a deep economic recession in the 1990s in a well-defined urban catchment area. Methods: The data covered every suicide attempt treated in health care during sample periods in 1989–1997 in Helsinki, Finland. Annual rates were estimated, 3-year moving averages for trends calculated, and significances tested. Results: The overall attempted suicide rate remained stable over the 9-year study period. Against expectations, male rates decreased significantly (P < 0.01), especially among those aged 15–34. There was a convergence of female and male rates, although male rates remained higher. The proportion of poisonings as method increased (P < 0.01). Conclusions: Despite the deep economic recession, with rapidly rising unemployment attempted suicide rates remained unexpectedly stable. The total attempted suicide rate did not increase as might have been anticipated, and the male rate even decreased.


Social Psychiatry and Psychiatric Epidemiology | 2002

Health care contacts before and after attempted suicide

Kirsi Suominen; Erkki Isometsä; Aini Ostamo; Jouko Lönnqvist

Objective The prevalence and timing of contact with health care predicting and after a suicide attempt are not well known. This study systematically investigated the pattern of all health care contacts both before and after attempted suicide. Methods All consecutive 1,198 suicide attempters treated in hospital emergency rooms in Helsinki during a 12-month period were identified. Data were gathered on all health care contacts 1 year before and after the index attempt. Results The vast majority of the suicide attempters had contact with health care during the 12 months before and after the index attempt. However, half were without a treatment contact during the final 30 days before the index attempt and one-third in the 30 days following the attempt. Suicide attempters who were not referred to aftercare, did not suffer from a previously recognised major mental disorder, were male, or made non-violent attempts were less likely to be receiving treatment after the attempt. Conclusion Although most suicide attempters have contact with health care within the year before and after the parasuicide, far fewer actually have a treatment contact at the time of the attempt.

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Kirsi Suominen

National Institute for Health and Welfare

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Antti O. Impinen

National Institute for Health and Welfare

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Pirjo M. Lillsunde

National Institute for Health and Welfare

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Karoliina Karjalainen

National Institute for Health and Welfare

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Heidi Hjelmeland

Norwegian University of Science and Technology

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