Calculating CI's from Poisson Distribution

[SAS_Novice22]

Hi SAS community,

I am hoping that someone would be willing to assist me. I am looking to determine confidence intervals using Poisson distribution for the following.

1. Minimal Incidence (32 cases)

- Average minimal incidence  = 0.197 per 100,000 (0-19 years)/ or 1 in 507,614 in Canada

2. 19 cases with age ranging from 1-44 months

- Average minimal incidence  = 0.498 per 100,000 (0-4 years)/ or 1 in 200,803 in Canada

3. Minimal birth incidence (32 cases), assuming stable annual birth rates

- Average minimal incidence = 4.39 per 100,000 births/ or 1 in 22,779 births in Canada

4. Minimal incidence (24 cases) based on 8 participating provinces' population 0 to 19 years

- Average minimal incidence = 0.151 per 100,000 (0-19 years)/ or 1 in 662,251 in Canada

5. Minimal incidence based on 2 years combined (2020-2021) across 3 provinces of population between 0-19 years

- Average minimal incidence = 0.309 per 100,000 (0-19 years)/ or 1 in 324,000 in Canada

Does anyone know how I would go about calculating the confidence intervals for these?

Thank you in advance.

T.

[PaigeMiller]

Google is your friend

Lots of answers

[Ksharp]

http://support.sas.com/kb/24/188.html
http://support.sas.com/kb/37/344.html
http://support.sas.com/kb/44/354.html