| Variable/Response | Absolute Frequency | Relative Frequency (%) | |
| Parental characteristics | |||
| Yes | 12 | 80 | |
| No | 3 | 20 | |
| Family characteristics | |||
| Yes | 7 | 46.67 | |
| No | 8 | 53.33 | |
| Stress during pregnancy | |||
| Yes | 2 | 13.33 | |
| No | 13 | 86.67 | |
| Neonatal stress | |||
| Yes | 3 | 20 | |
| No | 12 | 80 | |
| After birth | |||
| Yes | 14 | 93.33 | |
| No | 1 | 6.67 | |