Table I.

Descriptive data on haptoglobin concentrations at weeks 1 and 6 stratified by parity and disease status (g/L)

Week	Disease status	Parity	n	Mean	Standard deviation	Minimum	Maximum
1	Non-diseased	Heifers	178	0.95	1.33	0	10.2
	Non-diseased	Cows	394	0.37	1.06	0	11.6
	Diseased	Heifers	54	1.23	1.29	0.04	6.8
	Diseased	Cows	271	1.05	1.48	0	13.3
6	Non-diseased	Heifers	176	0.20	0.21	0.04	1.55
	Non-diseased	Cows	378	0.20	0.29	0.01	2.81
	Diseased	Heifers	52	0.24	0.22	0.06	1.25
	Diseased	Cows	253	0.32	0.54	0.02	3.97