| Characteristic | Frequency (N) | Percentage (%) |
| Principal Investigator (PI) gender |
| |
| Male | 316 | 72 |
| Female | 123 | 28 |
| Principal Investigator (PI) Nationality |
| |
| Saudi | 295 | 67.2 |
| Non-Saudi | 144 | 32.8 |
| Principal Investigator (PI) Profession |
| |
| Academic staff | 142 | 32.3 |
| Undergraduate students | 130 | 29.6 |
| Postgraduate students | 62 | 14.1 |
| Physician | 81 | 18.6 |
| Dentist | 7 | 1.6 |
| Nurse | 6 | 1.4 |
| Pharmacist & Asst. Pharmacist | 7 | 1.1 |
| Radiologist | 2 | 1.4 |
| Others | 2 | 1.4 |
| Qualification and field of Principal Investigator (PI) | ||
| Academic field | 332 | 76.5 |
| PhD | 43 | 13 |
| MD | 76 | 22.9 |
| Master | 32 | 9.6 |
| Bachelor | 12 | 3.6 |
| Postgraduate students | 39 | 11.7 |
| Undergraduate students | 130 | 39.2 |
| Service field | 107 | 23.5 |
| PhD | 18 | 16.8 |
| MD | 53 | 59.5 |
| Master | 23 | 21.5 |
| Bachelor | 13 | 12.1 |