Calculating condition periods (condition_end_date)

[Gowtham_Rao]

Yes - definitely interested (we dont have an environment with data in OMOP CDM yet).

Being new to the community, I have been reading historical discussions: one relevant to this topic is here The community raised some good points - anything between then and now, that we could use to further this discussion? Is it possible to link/merge the two threads?

Here is the ICD 10 version Chronic Condition Indicator Refined (CCIR) for ICD-10-CM

@Vojtech_Huser

Considering diagnoses:If someone has repeatedly diagnosis of osteoporosis, I abstract an era lasting 5 years.However, how is it done for urinary track infection (which usually lasts weeks)?Is it the same rule for all diagnoses or is it diagnosis specific?How do I find the gap for osteoporosis?

@Christian_Reich

Gents:

Why couldn’t the data tell that? We could for each product generate the distribution of distance between individual admistrations (in case of drug) or diagnoses (in case of condition) and try to infer what a good persistence window would be.

@aperotte

Yes, I am currently exploring the use of hidden markov models for inferring
condition eras and drug eras. The hope is that we could learn
condition/drug specific parameters that would both characterize the
chronicity of the condition/drug and allow for inference of condition/drug
eras that are robust to noise.