Ralf Kuja-Halkola
Biographic Data
| ID | 5476820 |
|---|---|
| NAME | Ralf Kuja-Halkola |
| GIVEN NAMES | Ralf |
| FAMILY NAME | Kuja-Halkola |
| SIGNATURE | KUJA-HALKOLA R |
| AFFILIATIONS | Karolinska Institutet |
| VERIFIED | No |
| TOTAL WORKS | 6 |
| TOTAL CITATIONS | 2 |
| AUTHOR COUNT | 6 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2012 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 1 |
Childhood Parental Psychiatric Hospitalization and Offspring Suicidal Behavior, Violent Crime, and Violent Victimization
Population-level studies consistently report associations between parental psychiatric disorders and violence-related outcomes in offspring, but it remains unclear whether these reflect causal effects of parental illness or shared familial vulnerabilities. Using Swedish national registers, we followed 2,978,645 individuals born 1975-2005 from age 15 until the first violence-related outcome, emigration, death, age 25, or end of 2020. We estimated …
Mortality in offspring with parental criminal convictions
Background: Parental offending behavior is associated with poorer child mental and physical health, but less in known about its association with child mortality. Further, research is focused on the United States, which is unique in its societal structure and mass incarceration. Methods: Using population-based register data on all births in Sweden in 1973-2013 (N = 4.2 million) and Cox regressions, we examined the associations of mother's and fath…
Adverse perinatal events and offspring criminal convictions in men and women
We examined associations of adverse perinatal events with offspring violent and non-violent criminal convictions in men and women. All singleton births between 1973 and 1995 (n = 1,146,570 men, n = 1,085,217 women) were identified through Swedish population-based registers. Information about adverse perinatal events was retrieved from the Medical Birth Register. Outcomes were criminal convictions collected from the National Crime Register. We est…
Parental criminality and children's educational attainment
We examine how parental criminality is associated with offspring education at different educational stages from primary to tertiary education and conduct separate analyses for non-violent and violent crimes and incarceration, and for paternal and maternal criminality. We use Swedish total population register data of 513,886 children and their parents and estimate both population-level linear probability models and cousin fixed-effects models. Par…
Parental substance misuse and reproductive timing in offspring
Parents with substance misuse provide their children with a potentially risky rearing environment. According to the evolutionary life history theory, such environments steer individuals towards faster reproductive strategy. However, parents providing their children with hazardous environments may also pass on genes associated with early parenthood. In register data on individuals born in Sweden 1973–1993 (N = 2,176,128), the hazard ratio of enter…
Sibling Comparison Designs
Twins, full siblings, and half-siblings are increasingly used as comparison groups in matched cohort and matched case-control studies. The "within-pair" estimates acquired through these comparisons are free from confounding from all factors that are shared by the siblings. This has made sibling comparisons popular in studying associations thought likely to suffer confounding from socioeconomic or genetic factors. Despite the wide application of t…
Adverse perinatal events and offspring criminal convictions in men and women
We examined associations of adverse perinatal events with offspring violent and non-violent criminal convictions in men and women. All singleton births between 1973 and 1995 (n = 1,146,570 men, n = 1,085,217 women) were identified through Swedish population-based registers. Information about adverse perinatal events was retrieved from the Medical Birth Register. Outcomes were criminal convictions collected from the National Crime Register. We est…
Sibling Comparison Designs
Twins, full siblings, and half-siblings are increasingly used as comparison groups in matched cohort and matched case-control studies. The "within-pair" estimates acquired through these comparisons are free from confounding from all factors that are shared by the siblings. This has made sibling comparisons popular in studying associations thought likely to suffer confounding from socioeconomic or genetic factors. Despite the wide application of t…
Parental substance misuse and reproductive timing in offspring
Parents with substance misuse provide their children with a potentially risky rearing environment. According to the evolutionary life history theory, such environments steer individuals towards faster reproductive strategy. However, parents providing their children with hazardous environments may also pass on genes associated with early parenthood. In register data on individuals born in Sweden 1973–1993 (N = 2,176,128), the hazard ratio of enter…
Adverse perinatal events and offspring criminal convictions in men and women
We examined associations of adverse perinatal events with offspring violent and non-violent criminal convictions in men and women. All singleton births between 1973 and 1995 (n = 1,146,570 men, n = 1,085,217 women) were identified through Swedish population-based registers. Information about adverse perinatal events was retrieved from the Medical Birth Register. Outcomes were criminal convictions collected from the National Crime Register. We est…
Parental criminality and children's educational attainment
We examine how parental criminality is associated with offspring education at different educational stages from primary to tertiary education and conduct separate analyses for non-violent and violent crimes and incarceration, and for paternal and maternal criminality. We use Swedish total population register data of 513,886 children and their parents and estimate both population-level linear probability models and cousin fixed-effects models. Par…
Childhood Parental Psychiatric Hospitalization and Offspring Suicidal Behavior, Violent Crime, and Violent Victimization
Population-level studies consistently report associations between parental psychiatric disorders and violence-related outcomes in offspring, but it remains unclear whether these reflect causal effects of parental illness or shared familial vulnerabilities. Using Swedish national registers, we followed 2,978,645 individuals born 1975-2005 from age 15 until the first violence-related outcome, emigration, death, age 25, or end of 2020. We estimated …
Mortality in offspring with parental criminal convictions
Background: Parental offending behavior is associated with poorer child mental and physical health, but less in known about its association with child mortality. Further, research is focused on the United States, which is unique in its societal structure and mass incarceration. Methods: Using population-based register data on all births in Sweden in 1973-2013 (N = 4.2 million) and Cox regressions, we examined the associations of mother's and fath…
Demography (4 works) · Offspring (4 works) · Population (4 works) · Psychology (4 works) · Developmental psychology (3 works) · Pregnancy (3 works) · Biology (2 works) · Birth, Development, and Health (2 works) · Child Abuse and Trauma (2 works) · Confounding (2 works)