adds edits to main page and vital signs page.

content/en/docs/mimic-northwestern/modules/concept-mappings/_index.md

@@ -7,6 +7,6 @@ description: >
   The derived concept mappings contain concepts collected from the clinical information system of both BIDMC and NMHC used within the ICU. Information covered includes vital signs, labs, procedures, and medications.
 ---
 
-Standard terminology provides the foundation required for health information exchange and the ability to merge data from two disparate sources. The data dictionaries for mapping include vital signs, lab results, medications, and procedures. The concepts are mapped to the common terminology standards including Logical Observation Identifiers Names and Codes (LOINC) for vital signs and lab results, RxNorm for medications, and the Systematized Nomenclature of Medicine Clinical Terms (SNOMED CT) for procedures. COVID related terms are also highlighted as part of the dictionary of terminologies, specifically for labs and medications.
+Standard terminology provides the foundation required for health information exchange and the ability to merge data from two disparate sources. The data dictionaries for mapping include vital signs, lab results, medications, and procedures. The concepts are mapped to the common terminology standards including Logical Observation Identifiers Names and Codes (LOINC) for vital signs and lab results, RxNorm for medications, and the Systematized Nomenclature of Medicine Clinical Terms (SNOMED CT) for procedures including Observational Medical Outcomes Partnership (OMOP) codes. COVID related terms are also highlighted as part of the dictionary of terminologies, specifically for labs and medications.
 
-Commonly occurring MIMIC and NW labels associated with frequent events were mapped to standardized codes. Derived concept mappings for both MIMIC and Northwestern will be released on the [MIMIC-Code Repository](https://github.com/MIT-LCP/mimic-code).
+Commonly occurring MIMIC and Northwestern labels associated with frequent events are mapped to standardized codes. Derived concept mappings for both MIMIC and Northwestern is released on the [MIMIC-Code Repository](https://github.com/MIT-LCP/mimic-code).

content/en/docs/mimic-northwestern/modules/concept-mappings/vital_signs.md

@@ -4,21 +4,27 @@ linktitle: "vital signs"
 weight: 3
 date: 2023-09-18
 description: >
-  Numeric vital sign concept mappins within respiratory, routine, general, and hemodynamic categories.
+  Numeric vital sign concept mappings within general, routine, respiratory, and hemodynamic categories.
 ---
 
 Vital signs data in MIMIC-Northwestern is split between two tables in the ICU module, the d_items and chartevents. The d_items table is the definition table for all concepts recorded in the events tables in the ICU module, including the chartevents table, and the chartevents table contains all the charted data available for a patient during their ICU stay, including vital signs readings. 
 
-Data from the d_items table was used for mapping vital signs values to Logical Observation Identifiers Names and Codes (LOINC), including the label and the unit of measurement. Concepts in the d_items table are stratified into various categories. Most vital signs are under the category 'Routine Vital Signs'. However, some vital signs, such as respiratory rate and O<sub>2</sub> saturation, are listed under the category 'Respiratory'. Similar to lab results, the online tool [SearchLOINC](https://loinc.org/search/) was used to map vital signs to Logical Observation Identifiers Names and Codes (LOINC) v2.72 and the [OHDSI Athena code dictionary](https://athena.ohdsi.org/) for OMOP codes. 
+Data from the d_items table is used for mapping vital signs values to Logical Observation Identifiers Names and Codes (LOINC), including the label and the unit of measurement. Vital signs with numeric parameter types that are stratified into four categories including 'General', 'Routine Vital Signs', 'Respiratory' and 'Hemodynamics' are included in the mappings. Similar to lab results, the online tool [SearchLOINC](https://loinc.org/search/) is used to map vital signs to Logical Observation Identifiers Names and Codes (LOINC) v2.72 and the [OHDSI Athena code dictionary](https://athena.ohdsi.org/) for Observational Medical Outcomes Partnership (OMOP) codes. 
 
-There were two concepts in MIMIC under the 'Routine Vital Signs' category that are not mapped because no suitable LOINC code exists for these concepts. These concepts account for around 0.02% of total vital signs events in MIMIC. The rest of the concepts have an exact match.
+Two concepts in MIMIC under the 'Routine Vital Signs' category are not mapped because no suitable LOINC code exists for these concepts. These concepts account for around 0.02% of total vital signs events in MIMIC. The rest of the concepts have an exact match.
+
+Examples of MIMIC vital signs that were unmapped:
 
 | Vital sign name | Mapping challenge | Comments |
 |-----------------|---------------|----------|
 | Bladder Pressure | No LOINC code available | Bladder pressure is a technique used to monitor intra-abdominal pressure. |
 | Doppler BP | No LOINC code available | Doppler is sometimes used in the process of measuring systolic blood pressure if the pulse is faint. |
 
-# Table columns
+## Important considerations
+
+* Northwestern mappings contain most of the clinically relevant concepts in MIMIC. Body mass index, 'BMI' is an additional item sourced from the Northwestern data warehouse.
+
+## Table columns
 
 | Name            | Postgres data type  |
 | --------------- | ------------------- |
@@ -50,8 +56,8 @@ A unique identifier for a single measurement type in the database.
 ### `loinc_label`
 `loinc_label` contains the LOINC Long Common Name for the loinc code.
 ### `omop_id`
-`omop_id` is a unique identifier for each Concept across all domains in the Observational Medical Outcomes Partnership (OMOP) common data model.
+`omop_id` is a unique identifier for each Concept across all domains in the OMOP common data model.
 ### `author_id`
 ORCIDs that identifies the persons or groups responsible for asserting the mappings.
 ### `reviewer_id`
-ORCIDs that identifies the persons or groups that reviewed and confirmed the mapping.
+ORCIDs that identifies the persons or groups that reviewed and confirmed the mappings.