I am wondering if anyone can share with me a good references to understand the biostatistics with examples and exercises especially the calculation of odd ratio and relative risk.
thanks in advance
https://www.medcalc.org/calc/odds_ratio.php
Pretty simple calculator for both OR and RR here.
You may also find these links and PDFs useful. Find below
https://www.statisticshowto.datasciencecentral.com/odds-ratio/
https://www.openanesthesia.org/odds_ratio_calculation/
You may consult the classic book "An Introduction to Categorical Data Analysis" by Alan Agresti. A fundamentally useful book, if not necessary.
I would recommend you to read Chapter 4: Measures of Disease-Exposure Association, of the book "Statistics for Epidemiology" by Nicholas P. Jewell.
Link:
https://www.amazon.ca/Statistics-Epidemiology-Nicholas-P-Jewell/dp/1584884339
If you want I can share the pdf file with you.
Supercourse is always my choice to find lecture notes of epidemiology and biostatistics. There are many powerpoints with detail description.
https://www.pitt.edu/~super1/
please search by entering your keywords (e.g. relative risk/ odds ratio) in right top corner and you will get many useful PPT
Thermal Transient or Fluent! I have tried to use transient thermal but the results show that there is no Temperature Gradient in the flow direction. So how can I let the flow temperature change...
01 November 2021 3,819 3 View
Hello, I have a question about atmospheric corrosion of metals. A metal (steel, zinc, copper ...) corrodes more or less quickly depending on the corrosiveness of the environment. The metal loses...
12 January 2021 7,942 4 View
Hello, I am looking for an atmospheric dispersion model of chloride and sulphate ions that allows to estimate the deposition rate of sulphur dioxide and chlorides (mg / m^2. Day ) for a given...
15 October 2020 4,607 0 View
In order to estimate the degradation rate of reinforced concrete structures in a marine area, I am looking for a model to estimate the dispersion of chloride ions in the atmosphere by taking into...
08 September 2020 8,209 5 View
When I read this short paragraph, ''- Vibration modes was in Greek letters for stretching and bending vibrations etc; Use amide I, II and III identifications. - Assignments like...
29 August 2020 3,316 5 View
Extracted chitin was subjected to Kjeldahl method, the result of nitrogen level obtained was 1.7 % ; however, EDX elemental analysis present various values of nitrogen form 3 to 6 %. How can we...
20 August 2020 9,086 5 View
Total nitrogen was calculated with Kjeldahl method, I found different equations and factors ''Total nitrogen content of shrimp waste was determined using the Kjeldahl method. Separately, pure...
17 August 2020 4,814 9 View
Can any one describe a suitable conditions and solvent to isolate pigments from fungi chitin? I used ethanol,chloroforme/methanol/water..no result obtained I get white powder with the solution...
02 March 2020 653 2 View
I have received an acceptance for publication my article in the "journal of medical -clinical research &reviews" I am not sure if this is a predatory journal and if no what the impact factor...
27 May 2019 5,949 15 View
I am looking for a university or a research institution in the field of urbanism and city planning that is interested in hosting and funding a series of seminars that are related to the impacts of...
23 December 2017 227 4 View
Just bounced on me. Before statistically analysing significant difference, shouldn't we see if data fits normal distribution first? Is 3 replicates enough to testify the hypothesis of normal...
31 July 2024 8,141 13 View
Hello, colleagues! There is commenting open for new upcoming edition of USP 1033. Validation target acceptance criteria is now different from what it used to be and it doesn't include Cpm....
23 July 2024 7,292 3 View
I am conducting a systematic review and have an observational study. I want to perform some meta-analyses using the already calculated odds ratios. Can I use RevMan for this purpose? If not, do...
21 July 2024 4,110 4 View
In my study, I found an odds ratio (OR) of 65 with a 95% confidence interval (CI) ranging from 1.2 to 195. Given the large odds ratio and the wide confidence interval, what are the potential...
07 June 2024 402 3 View
Suppose that in January 1996, 1000 adult residents of a community accepted an invitation to be examined for hypothyroidism at a local clinic. Eight persons were found to have the disease, it was...
27 May 2024 6,947 7 View
Dear community, I can't seem to find any clear information on power analyses work so I'm throwing my question out onto the internet hoping for answers. :) Study Details I am doing a...
19 May 2024 9,214 4 View
(STATA) Hello everybody. I would like to build a Forest Plot graph that includes all this information from the table. I am unable to build the commands to include this information in the chart....
11 May 2024 6,944 6 View
Assuming this is my hypothetical data set (attached figure), in which the thickness of a structure was evaluated in the defined positions (1-3) in 2 groups (control and treated). I emphasize that...
09 May 2024 871 4 View
I have three field margin types (grassy/shrubby/tree) and each type have 5 sites. I need to calculate Shannon index for insect counts from each field margin type.... Q1. In my case how should I...
19 April 2024 681 6 View
When I try to do the metatrim on STATA I get the following error: db metatrim . metatrim _ES _seES, reffect eform Note: default data input format (theta, se_theta) assumed. subcommand meta...
28 March 2024 9,326 2 View