Table 2. Animal level descriptive statistics of continuous variables within the final, complete cases data set for analysis (7,320 cows on 166 farms).

Variable	Minimum	Mean	Standard deviation	Median	Interquartile range	Maximum
Days in Milk	0.00	196.80	119.70	189.00	184	835.00
Milk yielda	2.78	25.76	5.06	25.57	6.49	51.10
Milk fatb	2.40	4.21	0.46	4.18	0.58	7.70
Milk proteinb	2.56	3.56	0.25	3.56	0.31	4.91
Somatic Cell Countc, d	10.00	167.30	231.84	95.55	142.14	6655.00

^a in kg.

^b in %.

^c × 1,000.

^d in number of cells / ml.