Prenatal influences on the development of schizophrenia include poor nutrition and exposure to viruses. Having a family history of schizophrenia increases the risk of developing or triggering schizophrenia. Taking psychoactive or psychotropic drugs as a teen and/or young adult is also a risk factor.
Parenting styles are instrumental in personality disorders but are not currently listed as a risk factor in thought disorders.

Descriptive statistics are used to summarize and describe the characteristics of a dataset. They can provide insights into the central tendency, variability, and distribution of the data. In this scenario, the PMHNP is analyzing data from a study of depression symptoms in a sample of 100 patients. The PMHNP needs to use descriptive statistics to summarize the data.
The mean is a measure of central tendency that represents the average value of the data. It is calculated by adding all the values in the dataset and dividing them by the total number of values. The mean is a useful descriptive statistic for summarizing the data because it takes into account all the values in the dataset but may not adequately address potential outliers.

Patients with schizoid personality disorder care little for social relationships, have a restricted emotional range, and appear indifferent to criticism or praise.
Patients with borderline personality disorder exhibit impulsivity, self-harm, inappropriate anger, and affective instability. They feel empty and bored, and they frantically try to avoid abandonment.
Patients with avoidant personality disorder are timid and easily wounded by criticism from others. They fear embarrassment and hesitate to form interpersonal relationships.
Patients with antisocial personality disorder exhibit criminal behavior beginning in childhood, such as truancy, fighting, destructiveness, and theft. They often default on debts, behave irresponsibly, and act recklessly. They show no remorse for their behavior.

Schizoaffective disorder is characterized by patients experiencing symptoms of schizophrenia along with either depression or mania.
Delusional disorder is a psychotic disorder characterized by the presence of delusions but no other symptoms of schizophrenia. Brief psychotic disorder is characterized by at least one psychotic symptom present for less than one month. Schizophreniform disorder is characterized by symptoms of schizophrenia for only one to six months.

Frontotemporal dementia is also called Pick's disease due to the presence of tau protein tangles in the brain. It affects males more often, and personality and behavior changes occur before cognitive decline.
Creutzfeldt-Jakob disease's early signs are flu-like with fatigue and cognitive impairment. HIV dementia manifests as cognitive decline. Huntington's disease causes motor abnormalities with cognitive decline later in the disease progression.