Function reference • pregfindr

Algorithm

apply_trimester_hierarchy(): Apply Trimester Hierarchy to Patients

apply_outcome_hierarchy(): Apply Outcome Hierarchy to Patients

apply_pregnancy_start_end_hierarchy(): Apply Pregnancy Start and End Hierarchy to Patients

Data extraction

filter_eligible_women(): ID women that fit inclusion criteria of age and time period

find_matches_in_ICD(): Go through the various "diagnosis" fields in the dataset, looking for matches with the ICD codes

match_on_pregnancy_cpt_code(): Keep and return records of eligible women that match CPT pregnancy codes with additional info

match_on_pregnancy_procedure_code(): Keep and return records of eligible women that match pregnancy procedure codes with additional info

calculate_age_variables(): Calculate additional age variables

extraction_example: Extraction Example

Pregnancy Codes

cpt_pregnancy_codes: CPT Pregnancy Codes

icd10_diagnosis_pregnancy_codes: ICD-10 Diagnosis Pregnancy Codes

icd10_procedure_pregnancy_codes: ICD-10 Procedure Pregnancy Codes

icd9_diagnosis_pregnancy_codes: ICD-9 Diagnosis Pregnancy Codes

icd9_procedure_pregnancy_codes: ICD-9 Procedure Pregnancy Codes

labor_delivery_codes: Labour and Delivery Codes

Reading and writing data

save_parquet(): Save an R object as a Parquet file

write_to_impala_then_read_lazy_table(): Save table to Impala and return remote table

Other helpers

drop_NAs_in_trimester_code_clean(): Drop NAs helper

keep_only_NAs_in_trimester_code_clean(): Keep NAs helper

Nsundays(): Calculate Nsundays (Number of Sundays per week)

success_confirmation(): Output a success confirmation message

validation_error(): Generate a validation error message

vars_content_to_string(): Helper for logging parameter name and value This function takes in one or more atomic variables and converts them into a string format for logging purposes.