Table 2.
Time to cord clamping and heart rate between ECC and DCC cohorts.
| Statistic | ECC (n = 198) | DCC (n = 412) | p-value |
|---|---|---|---|
| Time to cord clamp [s], median (p25, p75) | 37.0 (26.0, 48.0) | 94.0 (75.0, 121.0) | <0.01 |
| Time to first HR [s], median (p25, p75) | 17.0 (12.0, 23.0) | 17.0 (13.0, 23.5) | 0.68 |
| First (detected) HR [bpm], median (p25, p75) | 159.5 (126.0, 177.0) | 165.5 (141.5, 180.0) | 0.09 |
| First HR detected before cord clamp | 84.8% (168) | 99.8% (411) | <0.01 |
| Bradycardic (<100 bpm) first HR | 11.1% (22) | 9.5% (39) | 0.53 |
| Bradycardic and first HR before cord clamp | 9.1% (18) | 9.5% (39) | 0.88 |
| Bradycardic and cord clamp before first HR | 2.0% (4) | 0.0% (0) | <0.01 |
| n = 167 | n = 370 | ||
| HR at cord clamp [bpm], median (p25, p75) | 169.0 (145.2, 183.8) | 168.0 (153.0, 182.0) | 0.63 |
| HR change from cord clamp to 15 s after cord clamp [bpm], median (p25, p75) | 0.0 (−6.0, 9.8) | 1.0 (−4.0, 7.0) | 0.40 |
ECC early cord clamping, DCC delayed cord clamping, s second, p25 25th percentile, p75 75th percentile, HR heart rate, bpm beats per minute.