Translations:Advanced Field Epi:Manual 1 - Disease Investigation/289/en
| style="background-color:#ffffff;border:0.5pt solid #00000a;padding-top:0cm;padding-bottom:0cm;padding-left:0.199cm;padding-right:0.191cm;"| * Good for rare diseases
- Relatively rapid and cost-effective
- Relatively small sample sizes
- Often use existing data
- Can study multiple factors at once