Add secondary and death outcomes and respiratory covariates

[venexia]

No description provided.

[ZoeMZou]

Issues related to ICD-10 codelists for asthma, COPD, pulmonary fibrosis, and pneumonia:

1. Asthma (To investigate):

We need to find out whether including only the parent codes in the codelist excludes their subcategories during event extraction. For example, the current asthma codelist includes two parent codes (J45 and J46). It’s important to confirm if subcategories under J45 and J46 are excluded.

2. COPD Codelist (TO REVIEW):

The current codelist for COPD needs to be reviewed, as we identified additional codes in an existing codelist that were not previously included or reviewed.

3. Pulmonary Fibrosis Codelist (TO REVIEW):

The ICD-10 codelist for pulmonary fibrosis was created by us based on a referenced paper but remains unreviewed. A thorough review is necessary to ensure its accuracy and completeness.