case-control study
Published research on case-control study.

In 93 adults with well-controlled HIV followed about 6.5 years, CMV antibody levels and CMV-reactive T-cell responses were not linked to developing cognitive impairment.
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In a Finnish registry study, recent prescriptions for 6 medicine groups were linked to higher odds of fatal poisoning in bipolar disorder. Lithium was not.
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Autistic children under 6 fell asleep later, woke later and slept a little less than typically developing children of the same age, according to a 2026 study from Guangzhou, China.1 Parents …
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Stress, low support, loneliness and depression during pregnancy were the factors most strongly linked to postpartum depression in a 2026 survey of 975 mothers from German-speaking countries.…
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Patients with schizophrenia have substantially elevated dementia risk compared to the general population — roughly 2-3 times the age-adjusted rate — but the specific drivers within the schiz…
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