Table 1.
Extracted Data from Neurosurgical Studies on Low-Income Countries between 1973 and 2019
| Studies (N = 154), % (n) | |
|---|---|
| Study design | |
| Cohort | 37 (57) |
| Cross-sectional | 51 (78) |
| Randomized controlled trial | 1 (1) |
| Case series | 12 (18) |
| Language | |
| English | 74 (114) |
| French | 26 (40) |
| Multisite study | 7 (11) |
| Multicenter study | 3 (5) |
| Short-term surgical trip | 6 (10) |
| Author affiliation same as country of study | |
| First author | 74 (114) |
| Senior author | 70 (108) |
| Type of center | |
| Public | 58 (89) |
| Private | 14 (22) |
| University | 22 (34) |
| Charity | 2 (3) |
| Unknown | 4 (6) |
| Trauma procedure(s) | 29 (45) |
| Elective procedure(s) | 59 (91) |
| Both trauma and elective procedures | 11 (17) |
| Pediatric study | 55 (84) |
| Primary neurosurgical diagnosis | |
| Traumatic brain injury/head trauma | 24 (37) |
| Hydrocephalus | 26 (40) |
| Neoplastic intracranial mass | 10 (16) |
| Spine trauma | 8 (13) |
| Elective spine | 6 (10) |
| Pediatric spine | 6 (9) |
| Vascular | 6 (10) |
| Cerebral abscess | 5 (8) |
| Peripheral nerve | 2 (3) |
| Epilepsy | 1 (2) |
| Spine infection | 1 (2) |
| Documented clinical data | |
| Time of symptom onset to care | 27 (41) |
| Mechanism of injury (studies including trauma only) | 77 (48) |
| Access to imaging | 36 (56) |
| Comorbidities | 9 (14) |
| Documented demographic data | |
| Age | |
| Mean age | 55 (85) |
| Median age | 16 (24) |
| Age range | 51 (78) |
| Gender | 62 (96) |
| Total females | 8613 |
| Total males | 13,010 |
| Home location | 16 (24) |
| Distance home to health care system | 6 (9) |
| Socioeconomic status | 5 (7) |
| Education level | 3 (4) |
| Ethnic origin | 3 (5) |
| Marginalized population | 0 |
| Patient outcome data | |
| Complications | 49 (75) |
| Follow-up | 46 (71) |
| Quality of life | 10 (15) |
| Disease-free survival | 20 (31) |
| Overall survival | 66 (102) |