A case-control study of the seasonality effects on schizophrenic births on a tropical island

Carrión-Baralt, José R.; Fuentes-Rivera, Zulma; Schmeidler, James; Silverman, Jeremy M.

doi:10.1016/j.schres.2003.11.004

Cited by 11 publications

(11 citation statements)

References 11 publications

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“…One possible explanation is that mother is passing through the second trimester of her pregnancy in the height of flu season, and it is that infections during that period raise risk for schizophrenia in offspring. Another explanation was offered by a recent study carried out in a country with minimal seasonal weather change [14]. The fact that seasonality effect was found in patients with schizophrenia of a group likely to have increased genetic susceptibility suggests gene-environment interaction, perhaps in terms of epistasis between exogenous factors and maternal-inherited genes.…”

Section: Frequence and Risk Factorsmentioning

confidence: 99%

Schizophrenia: from Epidemiology to Rehabilitation

Mura¹,

Петретто²,

Bhat³

et al. 2012

CPEMH

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Purpose/Objective:We discuss recent evidences about schizophrenia (frequency, onset, course, risk factors and genetics) and their influences to some epidemiological myths about schizophrenia diffuse between psychiatric and psychopathology clinicians. The scope is to evaluate if the new acquisitions may change the rehabilitation approaches to schizophrenia modifying the balance about the neurodevelopmental hypothesis of schizophrenia accepting that the cognitive deficits are produced by errors during the normal development of the brain (neurodevelopmental hypothesis) that remains stable in the course of illness and the neurodegenerative hypothesis according of which they derived from a degenerative process that goes on inexorably.Research Method/Design:A review of the literature about epidemiology of schizophrenia has been performed and the contributions of some of these evidence to neurodevelopmental hypothesis and to rehabilitation has been described.Results:It cannot be definitively concluded for or against the neurodevelopmental or degenerative hypothesis, but efforts in understanding basis of schizophrenia must go on. Until now, rehabilitation programs are based on the vulnerability-stress model: supposing an early deficit that go on stable during the life under favorable circumstances. So, rehabilitation approaches (as neuro-cognitive approaches, social skill training, cognitive-emotional training) are focused on the individual and micro-group coping skills, aiming to help people with schizophrenia to cope with environmental stress factors.Conclusions/Implications:Coping of cognitive deficits in schizophrenia may represents the starting-point for further research on schizophrenia, cohort studies and randomized trials are necessary to defined the range of effectiveness and the outcome of the treatments.

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Section: Frequence and Risk Factorsmentioning

confidence: 99%

Schizophrenia: from Epidemiology to Rehabilitation

Mura¹,

Петретто²,

Bhat³

et al. 2012

CPEMH

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“…Nevertheless, most seasonality studies were conducted in high‐latitude regions and in Western countries. Few studies have been conducted in low‐latitude regions or in Asian countries, where findings have been inconsistent: some studies reported a slight increase in schizophrenia births in the winter/spring months, but others found no such increase …”

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confidence: 99%

Birth seasonality in schizophrenia: Effects of gender and income status

Cheng

Loh

Lin

et al. 2013

Psychiatry Clin Neurosci

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Aims:The aim of this study was to examine the correlations of birth seasonality in schizophrenia, considering influences of gender and income status. Methods:The sample consisted of 1 000 000 people in the general population randomly selected from the Taiwan National Health Insurance Research Database. Data for the birth-year period 1950-1989 were extracted for analysis (n = 631 911; 306 194 male, 325 717 female). Subjects with schizophrenia (2796 male, 2251 female) were compared with the general population. Subgroups divided by birth-year periods (10-year interval), gender, and income status (low, medium, high) were analyzed using both the Walter and Elwood seasonality and chi-squared tests.

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“…In a further systematic review, we identified 10 disorders (intellectual disability, ASD, ADHD, schizophrenia, BID, MDD, AUD, Alzheimer's disease, anorexia nervosa, and bulimia nervosa) in 51 articles conducted in 25 countries involving 1 539 811 patients 1,3,5,6,27‐73 . The meta‐analytic results of our findings and included studies are summarized in Table 2.…”

Section: Resultsmentioning

confidence: 99%

“…In a further systematic review, we identified 10 disorders (intellectual disability, ASD, ADHD, schizophrenia, BID, MDD, AUD, Alzheimer's disease, anorexia nervosa, and bulimia nervosa) in 51 articles conducted in 25 countries involving 1 539 811 patients. 1 , 3 , 5 , 6 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , …”

Section: Resultsmentioning

confidence: 99%