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Sample characteristics at each session
| Mean age in postnatal days (sd)* | Mean weight in grams (sd)*** | Mean SNAP-II scores (sd) | |
| Session 1 (31 KMC, 30 Incubator) | 220 (6.57) | 1362 (267) | 3.06 (7.03) |
| Session 2 (30 KMC, 31 incubator) | 223 (7.16) | 1438 (276) | 3.21 (7.06) |
*p < .05 ; *** p < .001
