Postnatal age (days) | N | Respiratory frequency (bpm) | ||
---|---|---|---|---|
Baseline | 2 min | 5 min | ||
P2 | 16 | 144 ± 7 | 163 ± 6 | 164 ± 8 |
P4 | 15 | 203 ± 7 | 247 ± 7 | 246 ± 11 |
P6 | 13 | 178 ± 10 | 227 ± 15 | 202 ± 15 * |
P7 | 16 | 194 ± 5 | 217 ± 7 | 235 ± 6 |
P12.5 | 10 | 195 ± 10 | 238 ± 10 | 232 ± 15 |
P14.5 | 16 | 194 ± 7 | 246 ± 9 | 247 ± 8 |
P21.5 | 10 | 176 ± 10 | 242 ± 11 | 243 ± 10 |