Total | Vented Teat Group | Nonvented Teat Group | P Value | |
---|---|---|---|---|
Subgroup, n (%) | 54/73 (74) | 25/33 (76) | 29/40 (73) | |
Age, months | 0.52 | |||
Mean (SD) | 3.76 (1.64) | 4.03 (1.68) | ||
Median (Range) | 4 (1–6) | 4 (1–6) | ||
Gender, n | 1.00 | |||
Male | 27 | 12 | 15 | |
Female | 27 | 13 | 14 | |
Chracteristics during bottle-feeding | ||||
Sucks/min | 0.01 | |||
Mean (SD) | 43.0 (16.4) | 36.7 (15.2) | 48.4 (15.6) | |
Median (Range) | 39.0 (19.7–77.1) | 32.4 (19.7–77.1) | 50.4 (19.8–70.1) | |
Pauses/ min | 0.06 | |||
Mean (SD) | 2.7 (1.3) | 2.3 (1.3) | 2.9 (1.3) | |
Median (Range) | 2.3 (0.0–6.0) | 2.0 (0.0–6.0) | 3.0 (0.7–6.0) | |
Amount of formula intake (ml) | 0.33 | |||
Mean (SD) | 135.0 (54.2) | 143.4 (56.4) | 127.8 (52.2) | |
Median (Range) | 120.0 (50.0–250.0) | 120.0 (50.0–250.0) | 120.0 (50.0–230.0) | |
Feeding time (minutes) | 0.34 | |||
Mean (SD) | 12.0 (6.1) | 10.6 (3.5) | 13.2 (7.5) | |
Median (Range) | 10.8 (5.2–37.0) | 10.2 (5.5–19.6) | 11.3 (5.2–37.0) | |
Vital parameters | ||||
Heart rate (bpm) | ||||
Before feeding Median (Range) | 144.5 (107.0–201.0) | 142.0 (123.0–199.0) | 147.0 (107.0–201.0) | 0.33 |
During feeding Median (Range) | 156.5 (130.0–183.0) | 153.0 (140.0–177.0) | 159.0 (130.0–183.0) | 0.68 |
After feeding Median (Range) | 149.5 (124.0–177.0) | 146.0 (131.0–176.0) | 153.0 (124.0–177.0) | 0.34 |
Respiratory rate (bpm) | ||||
Before feeding Median (Range) | 41.5 (31.0–59.0) | 41.0 (31.0–59.0) | 42.0 (35.0–54.0) | 0.16 |
During feeding Median (Range) | 45.0 (38.0–61.0) | 44.0 (38.0–61.0) | 46.9 (38.0–60.0) | 0.21 |
After feeding Median (Range) | 42.7 (31.0–58.0) | 42.0 (33.0–58.0) | 43.0 (31.0–50.0) | 0.6 |
Oxygen Saturation (%) | ||||
Before feeding Median (Range) | 99.0 (87.0–100.0) | 99.0 (93.0–100.0) | 98.0 (87.0–100.0) | 0.16 |
During feeding Median (Range) | 98.0 (88.0–100.0) | 98.0 (88.0–100.0) | 98.0 (90.0–100.0) | 0.97 |
After feeding Median (Range) | 98.0 (90.0–99.0) | 98.0 (91.0–99.0) | 98.0 (90.0–99.0) | 0.83 |