PSYCH 2AP3 Lecture Notes - Lecture 7: Etiology, Mood Disorder, Prevalence
21 Sep 2020
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Cases per 100 population (%): easy to understand, intuitive, not good for low frequency disorders. Cases per 10,000 population: used for low frequencies, not good for high frequency disorders. Clinical estimates: how many appear in clinics with disorder? o easy and inexpensive to calculate, leads to underestimate of frequency. Community estimates: how many cases in community sample? o expensive and time-consuming. Visser et al (2014): sampled 6. 4 million children 4-17 years of age o 8. 8%-point prevalence: 11% lifetime prevalence (to age 17) Pastor et al (2015): sampled ~39,000 children 4-17 years of age: 9. 5% lifetime prevalence (to age 17) Collins & cleary (2016): using visser"s data, calculated 43% increase in adhd diagnoses between 2004-2014 epidemiology- general. Phi type starts in nursery or primary school, more common in boys than girls. Pi type starts in primary or high school, equally common in boys & girls: more likely to be diagnosed late is because lack of attention is expected in kindergarten.
