Table 2. Clinical variables of non-lame (group C) and lame (group L) cows.

	Group C (n = 12)a				Group L (n = 41)b
Variablec	Mean	SD	Median	IQRd	Mean	SD	Median	IQRd	P-Value
Parity	2.58	0.67	2.50	1.00	2.88	0.95	3.00	1.50	0.4303
Age	4.07	0.61	4.04	0.86	4.72	1.23	4.64	1.90	0.0172
DIM	98.21	42.57	86.75	84.38	153.13	87.90	146.50	107.75	0.0310
DMY	47.10	8.01	51.45	12.76	39.75	7.56	39.80	9.40	0.0051
BCS	3.13	0.27	3.25	0.44	2.87	0.42	2.75	0.63	0.0509
WH	147.92	2.83	148.00	4.63	151.52	3.88	151.00	5.50	0.0043
BW	650.05	29.97	655.27	52.02	655.59	48.61	656.23	77.67	0.7109
RT	38.71	0.18	38.7	0.35	38.54	0.25	38.6	0.3	0.0290
NRS	1.75	0.34	2.00	0.50	3.35	0.59	3.50	1.00	<0.0001

^aGroup C: Non-lame = Numerical rating system (NRS) according to Flower and Weary [38] ≤ 2.

^bGroup L: lame = NRS ≥ 2.5.

^cVariable: Age in years; DIM = Days in milk at recording period; DMY = Daily milk yield at recording period; BCS = Body condition score according to Edmondson et al. [41]; WH = withers height; BW = estimated body weight according to Yan et al.[40]; RT = rectal temperature in degrees Celsius at selection day; NRS = Numerical rating system according to Flower and Weary [38].

^dInterquartile range.