| Type of Knowledge | Know n (%) | Know nothing n (%) | P |
| Type type of premature babies aligible to MSK | 6 (12.0) | 44 (88.0) | <0.001 |
| Precautions before MKC | 36 (72.0) | 14 (28.0) | 0.003 |
| Avantage of MKC for premature babies | 18 (36.0) | 32 (64.0) | 0.065 |
| Avantages for mothers | 25 (50.0) | 25 (50.0) | 0.999 |
| Contraindications of MKC | 21 (42.0) | 29 (58.0) | 0.322 |
| The practice duration | 31 (62.0) | 19 (38.0) | 0.119 |
| The place where to practice MKC | 32 (64.0) | 18 (36.0) | 0.065 |