Table 1.

Median, minimum, and maximum age distribution of calves with (n = 56) or without (n = 50) ultrasonographic evidence of lung consolidation in 13 Holstein dairy farms

Farm	Consolidated Calvesa				Non Consolidated Calvesa				Total
	Median Age (d)	Min	Max	n	Median Age (d)	Min	Max	n
1	21	24	38	2	10	6	14	2	4
2	25	21	55	5	59	26	71	5	10
3	44	5	59	4	24	2	33	3	7
4	33	15	44	7	16	10	36	3	10
5	31	15	38	7	39	37	41	2	9
6	31	22	37	3	44	–	–	1	4
7	–	–	–	0	21	18	23	2	2
8	39	35	54	3	30	23	44	7	10
9	38	24	51	5	38	14	64	5	10
10	30	16	37	6	19	7	22	4	10
11	77	31	95	3	49	11	76	7	10
12	64	35	85	6	42	39	44	4	10
13	85	11	116	5	97	50	108	5	10

^aConsolidation was defined based as the presence of at least 1 site with lung consolidation depth ≥1 cm; en dash, no data required (n of 0 or 1).