Table 1.
Summary of study characteristics included.
| Total Number of Studies Included in this Review | 50 |
|---|---|
| Types of publications (%) | |
| Cross-sectional | 18 (36) |
| Correlational | 14 (28) |
| Case-Control | 10 (20) |
| Cohort | 7 (14) |
| Longitudinal | 1 (2) |
| Year of publication | |
| Range | 1976–2018 |
| Number of publications per decade | |
| 1970–1980 | 5 |
| 1981–1990 | 3 |
| 1991–2000 | 17 |
| 2001–2010 | 14 |
| 2011–present | 11 |
| Number of patients with epilepsy studied | |
| Total number of patients with epilepsy | 2826 |
| Mean number of patients per study (SD) | 56.5 (54.6) |
| Range | 3–248 |
| Median | 41 |
SD = standard deviation.