Table 2 Main group (intention-to-treat analysis). Baseline characteristics by vented teat group and nonvented teat group
Total | Vented Teat Group | Nonvented Teat Group | P Value | |
|---|---|---|---|---|
Main Group, n (%) | 73 (100) | 33 (45) | 40 (55) | |
Age, months | 0.72 | |||
Mean (SD) | 4.6 (2.1) | 4.5 (2.2) | 4.7 (21.1) | |
Median (Range) | 5 | 4 (1–8) | 5 (0–8) | |
Gender, n (%) | 0.64 | |||
Male | 38 (52) | 16 (48.5) | 22 (55) | |
Female | 35 (48) | 17 (51.5) | 18 (45) | |
Characteristics during bottle-feeding | ||||
Sucks/min | 0.63 | |||
Mean (SD) | 40.0 (17.8) | 38.7 (16.8) | 41.1 (18.7) | |
Median (Range) | 38.2 (9.7–78.6) | 36.3 (12.7–78.6) | 40.7 (9.7–70.1) | |
Pauses/ min | 0.03 | |||
Mean (SD) | 2.5 (1.3) | 2.1 (1.3) | 2.7 (1.2) | |
Median (Range) | 2.0 (0.0–6.0) | 2.0 (0.0–6.0) | 3 (0.5–6.0) | |
Amount of formula intake (ml) | 0.15 | |||
Mean (SD) | 136.1 (57.2) | 147.6 (58.2) | 126.7 (55.4) | |
Median (Range) | 120.0 (25.0–250.0) | 140.0 (50.0–250.0) | 120 (25.0–230.0) | |
Feeding time (minutes) | 0.13 | |||
Mean (SD) | 12.1 (6.5) | 10.4 (3.7) | 13.5 (7.8) | |
Median (Range) | 11.0 (3.5–37.0) | 10.0 (5.5–19.6) | 11.4 (3.5–37.0) | |
Vital parameters | ||||
Heart rate (bpm) | ||||
Before feeding Median (Range) | 143.0 (94.0–201.0) | 141.0 (115.0–199.0) | 144.0 (94.0–201.0) | 0.74 |
During feeding Median (Range) | 153.0 (130.0–184.0) | 153.0 (139.0–178.0) | 154.0 (130.0–184.0) | 0.57 |
After feeding Median (Range) | 148.0 (123.0–181.0) | 146.0 (125.0–176.0) | 148.0 (123.0–181.0) | 0.77 |
Respiratory rate (bpm) | ||||
Before feeding Median (Range) | 41.0 (30.0–59.0) | 40.0 (31.0–59.0) | 41.0 (30.0–54.0) | 0.35 |
During feeding Median (Range) | 45.0 (36.4–61.0) | 44.0 (38.0–61.0) | 46.0 (36.4–60.0) | 0.43 |
After feeding Median (Range) | 41.0 (30.0–58.0) | 39.0 (33.0–58.0) | 41.5 (30.0–50.0) | 0.52 |
Oxygen Saturation (%) | ||||
Before feeding Median (Range) | 98.0 (87.0–100.0) | 99.0 (93.0–100.0) | 98.0 (87.0–100.0) | 0.01 |
During feeding Median (Range) | 98.0 (88.0–100.0) | 98.0 (88.0–100.0) | 98.0 (90.0–100.0) | 0.71 |
After feeding Median (Range) | 98.0 (84.0–99.0) | 98.0 (84.0–99.0) | 98.0 (90.0–99.0) | 0.82 |