Table 1.
Summarizing Outcomes in Clinical and Basic Science Studies
| Outcome Variable | Statistics |
|---|---|
| Goal: Describe the distribution of observations measured in the study sample | |
| Continuous |
Sample size (n) and Mean and SD ora Median (Q2) and interquartile range (Q3−Q1) |
| Binary, categorical, or ordinal | Sample size (n) and relative frequency (%) |
| Goal: Compare groups | |
| Continuous | Means and SEs for each group |
| Binary, categorical, or ordinal | Proportions (%) and SEs for each group |
Q indicates quartile.
a
Mean and SD if there are no extreme or outlying values.