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Restrict T to first cohort episode per person. #2180

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merged 2 commits into from
Dec 20, 2022
Merged

Restrict T to first cohort episode per person. #2180

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5d248bf
Restrict T to first cohort episode per person.
chrisknoll Dec 20, 2022
d94d2ae
Add ASC to sort clause for clarity.
chrisknoll Dec 20, 2022
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7 changes: 6 additions & 1 deletion src/main/resources/resources/incidencerate/sql/performAnalysis.sql
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Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,12 @@ into #cteCohortData
from #cteCohortCombos combos
join (
select cohort_definition_id, subject_id, cohort_start_date, cohort_end_date, @adjustedStart as adjusted_start_date, @adjustedEnd as adjusted_end_date
FROM @temp_database_schema.@cohort_table
FROM (
select cohort_definition_id, subject_id, cohort_start_date, cohort_end_date, row_number() over (partition by subject_id, cohort_definition_id order by cohort_start_date) as ordinal
FROM @temp_database_schema.@cohort_table
where cohort_definition_id in (select cohort_id from #cohorts where is_outcome = 0)
) d
where d.ordinal = 1
) t on t.cohort_definition_id = combos.target_id
join @cdm_database_schema.observation_period op on t.subject_id = op.person_id and t.cohort_start_date between op.observation_period_start_date and op.observation_period_end_date
left join (
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