Table 1. Features of the babies.

*Finger feeding method

**Supplemental nursing system

	Min-max	Median	Mean ±SD or n (%)
Age (d)	3–173	41.5	51.3±38.5
Gender
Girl			12 (29.3)
Boy			29 (70.7)
Gestation week	28–40	38	37.5±2.8
Mode of delivery
Spontaneous vaginal			17 (41.5)
Cesarean section			24 (58.5)
Birth weight (g)	1170–4530	3180	3073.1±731.9
Feeding type on admission
Formula			1 (2.4)
Breast milk			10 (24.4)
Breast milk + formula			30 (73.1)
Lactation gap (d)	3–94	18	61.45±2.8
Total FF* usage time (d)	1–180	15	38.7±44.1
Breastfeeding with FF*
No			11 (26.8)
Yes			30 (73.2)
Breastfeeding starting time (d)	1–100	8.5	23.1±27.5
Bottle use
No			29 (70.7)
Yes			12 (29.3)
SNS**
No			39 (95.1)
Yes			2 (4.9)
Feeding type after FF* usage
Breastfeeding			30 (73.2)
Bottle use			9 (22)
Spoon feeding			1 (2.4)
SNS**			1 (2.4)