| State | Akwa Ibom | Delta | Rivers | Chi-square/P value |
| Variable | N (%) | N (%) | N (%) |
|
| Family monthly income (Naira) |
|
|
|
|
| <10,000 | 252 (25.5) | 139 (14.2) | 95 (9.5) | 216.0 (0.0001)* |
| 10,000 - 50,000 | 413 (41.8) | 528 (54.1) | 364 (36.3) | |
| 50,000 - 100,000 | 173 (17.5) | 197 (20.2) | 275 (27.4) | |
| >100,000 | 149 (15.1) | 112 (11.5) | 270 (26.9) | |
| Median family income | 30,000 Naira | 30,000 Naira | 50,000 Naira |
|