Table 2.

Paired samples of TSB and TCB from covered and uncovered skin during and after phototherapy

	Mean±SD (µmol/L)	Median (IQR) (µmol/L)	n	P value
During PT
TCBC	102±62	102 (55–146)	299	<0.0001
TSB	127±51	124 (89–162)
TCBC–TSB difference	−25±43	−25 (−49 to 1)
During PT
TCBU	79±70	61 (18–127)	309	<0.0001
TSB	127±51	122 (86–162)
TCBU–TSB difference	−48±46	−48 (−79 to −18)
After PT
TCB	143±63	141 (100–188)	142	0.0001
TSB	153±51	153 (115–187)
TCBC–TSB difference	−10±31	−13 (−28 to 9)

PT, phototherapy; TCB, transcutaneous bilirubinometry; TCBC, transcutaneous bilirubinometry readings from covered skin; TCBU, transcutaneous bilirubinometry readings from exposed skin; TSB, total serum bilirubin.