Click here to load reader

แนวคิดพื้นฐานทางระบาดวิทยา ( Basic epidemiological concepts)

  • View
    181

  • Download
    0

Embed Size (px)

DESCRIPTION

แนวคิดพื้นฐานทางระบาดวิทยา ( Basic epidemiological concepts). ระบาดวิทยา คือ อะไร. ระบาดวิทยา ( Epidemiology) เป็นการศึกษาทางวิทยาศาสตร์ที่มีระบบ ( discipline) ซึ่งเกี่ยวข้องกับการศึกษาความถี่ ( frequency) การแพร่กระจาย ( distribution ) - PowerPoint PPT Presentation

Text of แนวคิดพื้นฐานทางระบาดวิทยา ( Basic...

  • (Basic epidemiological concepts)

  • (Epidemiology) (discipline) (frequency) (distribution) (health) (disease) (populations) (risk factors) (prevention and control)

  • (Field Epidemiology)

  • ..1854

  • 1 ..2450 2 ..2490 3 ..2508 4 ..2533

  • ( evidence-based medicine)

  • ( quanlitative investigation ) ( quantitative investigation )

  • (descriptive epidemiology) (analytical epidemiology) (experimental epidemiology) (theoretical epidemiology)

  • (Descriptive Epidemiology)(what) (who) (when)(where)

  • (Uses of Descriptive Epidemiology) (Detection of individual cases) (Detection of outbreaks) (Measuring the impact of disease) (Understand the nature of a disease)

  • (Uses of Descriptive Epidemiology) (Understand the way that disease spreads and distributed)(Generate hypotheses and ideas for further research)(Evaluation of prevention and control measures)(Support planning activities for animal health programs)

  • (Analytical Epidemiology) (how) (why)

  • (measurement of frequency) ketosis (measurement of association) ketosis (measurement of effect) ketosis

  • (Odds)=13/1(a/c)(Odds)=26/15(b/d)(OR)=(a/c)/(b/d)=(a*d)/(b*c)=(13*15)/(26*1)=7.5

    13(a)26(b)391(c)15(d)1614(a+c)41(b+d)55

  • (count) (proportion) TB 200 40 40/200 = 0.2 (ratio) 3 120 3:120=0.025:1 (rate)

  • ( Prevalence) EIA 75 23 23/75=0.307 (attack rate) BSE 400 60 3 (60*100)/400=15% (case fatality rate) 100 100 100/100=1

  • (Epidemiological Triad)(agent)(host)(environment)

  • (Epidemiological Triad) (fulcrum) (agent) (host)

    (environment)

  • (Epidemiological Triad) 2 1.(stage of equilibrium)2.(stage of unequilibrium)

  • (stage of unequilibrium)

  • (agent) (agent)

  • (infectivity) (infectiousness) (pathogenicity) (virulence) (host range) (viability)

  • (host)

  • (environment) (intensive production system)

  • (sporadic disease) (endemic disease) (epidemic disease) (point epidemic common source epidemic) (propagative epidemic)

  • (sub-clinical disease)Disease screeningIceberg phenomenon (clinical disease)

  • (transmission chain) (transmission) (maintenance)

  • (transmission chain)

  • (transmission) (horizontal transmission)Directindirect (vertical transmission)Transovarialtranstadial

  • ? ? ?

  • ( 5 3 )

Search related