Table 3

Biochemical variables and packed cell transfusions over first week of life

Postnatal age (days)
Variable	Well survivors				BPD				Non-survivors
	2	3			8	2			3	8	2	3	8
Dmax (μl)
n = 45					23				8
Mean	77^*	75	79		91	90	81^*		91	80	64^*
SEM	3.8	4.0	4.3		4.1	4.3	5.7		12.6	12.7	7.7
Caeruloplasmin (mg/l)
n = 50					23				10
Mean	172^***	192^***	223^***		204^***	189^**	172^*		191	184	221
SEM	16.0	19.4	16.7		28.9	22.5	19.3		41.2	30.0	33.5
Vitamin C (μmol/l)
n = 57					25				12
Mean	46.1^***	42.1^***	55.8		57.1^**	45.1^***	25.3^***		63.3	46.3^*	26.6^**
SEM	3.11	2.78	6.04		3.63	3.50	3.29		14.65	5.39	6.62
Retinol (μmol/l)
n = 57					25				10
Mean	0.55	0.61^*	0.88^*		0.66^*	0.67	0.73		0.65	0.61	0.70
SEM	0.037	0.045	0.067		0.053	0.066	0.077		0.076	0.067	0.100
α Tocopherol (μmol/l)
n = 55					25				10
Mean	6.8	7.8^*	10.1^***		7.9^*	10.3^***	13.2^***		10.4^***	11.0^***	13.3^***
SEM	0.48	0.47	0.82		0.91	1.19	1.74		1.10	1.26	1.83
RBC SOD (IU/g Hb)
n = 41					19				9
Mean	4152	4089	4255		4248	4301^*	4890^*		4040^*	4218^*	4834^**
SEM	246	302	263		3265	241	385		78	382	326
Packed cell transfusions
n = 80					25
Median	0.48	0.54	0.90		1.00^a	1.44^b	2.28^b
Range	0–2.0	0–2.0	0–4.0		0–2.0	0–3.0	0–5.0

Significantly different from day of birth ^*p<0.05, ^**p<0.01,^***p<0.001.
Significantly more transfusions than well survivors^ap<0.01, ^bp<0.001.