Arvidsson H, Ericson BG (2005). The development of psychiatric care after the mental health care reform in Sweden. A case register study. Nordic Journal of Psychiatry 59, 186–192.
Barnett JH, Salmond CH, Jones PB, Sahakian BJ (2006). Cognitive reserve in neuropsychiatry. Psychological Medicine 36, 1053–1064.
Björklund A, Lindahl M, Sund K (2003). Family background and school performance during a turbulent era of school reforms. Swedish Economic Policy Review 10, 111–136.
Cannon M, Jones P, Huttunen MO, Tanskanen A, Huttunen T, Rabe-Hesketh S, Murray RM (1999). School performance in Finnish children and later development of schizophrenia: a population-based longitudinal study. Archives of General Psychiatry 56, 457–463.
Cannon M, Jones PB, Murray RM (2002). Obstetric complications and schizophrenia: historical and meta-analytic review. American Journal of Psychiatry 159, 1080–1092.
Cannon TD, Bearden CE, Hollister JM, Rosso IM, Sanchez LE, Hadley T (2000). Childhood cognitive functioning in schizophrenia patients and their unaffected siblings: a prospective cohort study. Schizophrenia Bulletin 26, 379–393.
Cantor-Graae E, Selten JP (2005). Schizophrenia and migration: a meta-analysis and review. American Journal of Psychiatry 162, 12–24.
Cnattingius S, Ericson A, Gunnarskog J, Kallen B (1990). A quality study of a medical birth registry. Scandinavian Journal of Social Medicine 18, 143–148.
Dalman C, Broms J, Cullberg J, Allebeck P (2002). Young cases of schizophrenia identified in a national inpatient register – are the diagnoses valid? Social Psychiatry and Psychiatric Epidemiology 37, 527–531.
Davidson M, Reichenberg A, Rabinowitz J, Weiser M, Kaplan Z, Mark M (1999). Behavioral and intellectual markers for schizophrenia in apparently healthy male adolescents. American Journal of Psychiatry 156, 1328–1335.
Deary IJ, Strand P, Smith P, Fernandes C (2007). Intelligence and educational achievement. Intelligence 35, 13–21.
Ekholm B, Ekholm A, Adolfsson R, Vares M, Osby U, Sedvall GC, Jonsson EG (2005). Evaluation of diagnostic procedures in Swedish patients with schizophrenia and related psychoses. Nordic Journal of Psychiatry 59, 457–464.
Isohanni I, Jarvelin MR, Jones P, Jokelainen J, Isohanni M (1999). Can excellent school performance be a precursor of schizophrenia? A 28-year follow-up in the Northern Finland 1966 birth cohort. Acta Psychiatrica Scandinavica 100, 17–26.
Isohanni I, Jarvelin MR, Nieminen P, Jones P, Rantakallio P, Jokelainen J, Isohanni M (1998). School performance as a predictor of psychiatric hospitalization in adult life. A 28-year follow-up in the Northern Finland 1966 Birth Cohort. Psychological Medicine 28, 967–974.
Jones PB, Done DJ (1997). From birth to onset: a developmental perspective of schizophrenia in two national birth cohorts. In Neurodevelopment and Adult Psychopathology (ed. Keshavan M. S. and Murray R. M.), pp. 119–136. Cambridge University Press: Cambridge.
Lawlor DA, Clark H, Ronalds G, Leon DA (2006). Season of birth and childhood intelligence: findings from the Aberdeen Children of the 1950s cohort study. British Journal of Educational Psychology 76, 481–499.
MacCabe JH, Murray RM (2004). Intellectual functioning in schizophrenia: a marker of neurodevelopmental damage? Journal of Intellectual Disability Research 48, 519–523.
Malaspina D, Reichenberg A, Weiser M, Fennig S, Davidson M, Harlap S, Wolitzky R, Rabinowitz J, Susser E, Knobler HY (2005). Paternal age and intelligence: implications for age-related genomic changes in male germ cells. Psychiatric Genetics 15, 117–125.
Matte TD, Bresnahan M, Begg MD, Susser E (2001). Influence of variation in birth weight within normal range and within sibships on IQ at age 7 years: cohort study. British Medical Journal 323, 310–314.
McGrath J, Welham J, Pemberton M (1995). Month of birth, hemisphere of birth and schizophrenia. British Journal of Psychiatry 167, 783–785.
Perreira KM, Harris KM, Lee D (2006). Making it in America: high school completion by immigrant and native youth. Demography 43, 511–536.
Reichenberg A, Weiser M, Rabinowitz J, Caspi A, Schmeidler J, Mark M, Kaplan Z, Davidson M (2002). A population-based cohort study of premorbid intellectual, language, and behavioral functioning in patients with schizophrenia, schizoaffective disorder, and nonpsychotic bipolar disorder. American Journal of Psychiatry 159, 2027–2035.
Schoenfeld D (1982). Partial residuals for the proportional hazards regression model. Biometrika 69, 239–241.
Sipos A, Rasmussen F, Harrison G, Tynelius P, Lewis G, Leon DA, Gunnell D (2004). Paternal age and schizophrenia: a population based cohort study. British Medical Journal 329, 1070.
WHO (1992). International Statistical Classification of Diseases and Related Health Problems, 3 vols. World Health Organization: Geneva.
Wicks S, Hjern A, Gunnell D, Lewis G, Dalman C (2005). Social adversity in childhood and the risk of developing psychosis: a national cohort study. American Journal of Psychiatry 162, 1652–1657.
Zammit S, Allebeck P, David AS, Dalman C, Hemmingsson T, Lundberg I, Lewis G (2004). A longitudinal study of premorbid IQ score and risk of developing schizophrenia, bipolar disorder, severe depression, and other nonaffective psychoses. Archives of General Psychiatry 61, 354–360.