# description
Possible group measure aggregates (E.g. Mean, Median).

# concept[].definition
Aggregated using Mean of participant values.

# concept[].definition
Aggregated using Median of participant values.

# concept[].definition
Aggregated using Mean of study mean values.

# concept[].definition
Aggregated using Mean of study median values.

# concept[].definition
Aggregated using Median of study mean values.

# concept[].definition
Aggregated using Median of study median values.