diff --git a/docs/cdm53.html b/docs/cdm53.html
index dc24d90..9c8026f 100644
--- a/docs/cdm53.html
+++ b/docs/cdm53.html
@@ -636,7 +636,8 @@ Compute age using year_of_birth.
For data sources with date of birth, the year should be extracted. For
data sources where the year of birth is not available, the approximate
year of birth could be derived based on age group categorization, if
-available.
+available. If no year of birth is available all the person’s data should
+be dropped from the CDM instance.
integer
@@ -10579,6 +10580,8 @@ No
drug_exposure_count
|
+The count of grouped DRUG_EXPOSURE records that were included in the
+DRUG_ERA row
|
|
diff --git a/docs/cdm54.html b/docs/cdm54.html
index ca9958e..ed9d8b5 100644
--- a/docs/cdm54.html
+++ b/docs/cdm54.html
@@ -744,7 +744,8 @@ Compute age using year_of_birth.
For data sources with date of birth, the year should be extracted. For
data sources where the year of birth is not available, the approximate
year of birth could be derived based on age group categorization, if
-available.
+available. If no year of birth is available all the person’s data should
+be dropped from the CDM instance.
integer
@@ -11288,6 +11289,8 @@ No
drug_exposure_count
|
+The count of grouped DRUG_EXPOSURE records that were included in the
+DRUG_ERA row
|
|
diff --git a/docs/cdm60.html b/docs/cdm60.html
index 79aec79..f3d1d49 100644
--- a/docs/cdm60.html
+++ b/docs/cdm60.html
@@ -688,7 +688,8 @@ Compute age using year_of_birth.
For data sources with date of birth, the year should be extracted. For
data sources where the year of birth is not available, the approximate
year of birth could be derived based on age group categorization, if
-available.
+available. If no year of birth is available all the person’s data should
+be dropped from the CDM instance.
integer
@@ -11596,6 +11597,8 @@ No
drug_exposure_count
|
+The count of grouped DRUG_EXPOSURE records that were included in the
+DRUG_ERA row.
|
|