Table 2.
Assessment and incidence of neonatal hyperbilirubinaemia.
| n = 860 | ||
|---|---|---|
| Neonates having any degree of jaundice as assessed by MCA; maximum degree | n (%) | 608 (71.9) |
| Slightly yellow | n (%) | 442 (72.7) |
| Moderately yellow | n (%) | 91 (15.0) |
| Quite yellow | n (%) | 61 (10.0) |
| Very yellow | n (%) | 14 (2.3) |
| Missing visual jaundice assessment | n | 14 |
| First postnatal day of jaundice during admission in PCBC (n = 608)a | ||
| Day 0 (0–23 h) | n (%) | 2 (0.9) |
| Day 1–2 (24–71 h) | n (%) | 390 (75.0) |
| Day 3–5 (72–143 h) | n (%) | 202 (73.2) |
| Day 6–8 (144–215 h) | n (%) | 8 (23.5) |
| Missing first day of jaundice | n | 6 |
| Neonates who had TcB quantified in PCBC | n (%) | 116 (13.5) |
| 1 TcB quantification | n (%) | 80 (9.3) |
| 2 or more TcB quantifications | n (%) | 36 (4.2) |
| Neonates who had TSB quantified in PCBC (before start of phototherapy, if indicated) | n (%) | 129 (15.0) |
| 1 TSB quantification | n (%) | 96 (11.1) |
| 2 or more TSB quantifications | n (%) | 33 (3.8) |
| Bilirubin nomogram risk category | ||
| Lower risk | n (%) | 664 (77.2) |
| Medium risk | n (%) | 172 (20.0) |
| Higher risk | n (%) | 14 (1.6) |
| Missing | n | 10 |
| Highest TSB level during admission in PCBC (µmol/L; n = 124) | Mean (SD) | 223 (68) |
| TSB level missing | n | 5 |
| Neonates having a TSB level above phototherapy threshold during admission in PCBCb | n (%) | 26 (3.0) |
| TSB level missing | n | 2 |
| Postnatal age when exceeding phototherapy threshold in PCBC (hours; n = 23) | Median (IQR) | 57 (43) |
| Neonates having a TSB level above phototherapy threshold after discharge home | n (%) | 7 (0.8) |
| Missing | n | 148 |
MCA maternity care assistant, PCBC primary care birth centre, TcB transcutaneous bilirubin, TSB total serum bilirubin, SD standard deviation, IQR interquartile range.
aPercentage according to number of participating neonates that had some degree of jaundice during admission in the PCBC and were admitted in a participating PCBC at the time.
bPhototherapy threshold according to the Dutch TSB nomogram4,5.