Table 3.

Descriptive statistics and means comparison of mobility scores for 82 spring-calving, pasture-based farms in southern Ireland during grazing (VISIT1) and when housed (VISIT2) in the 2019–2020 season¹

	Mobility score2
	0	1	2	3
Grazing
Mean %	36	54	8.8	1.2
SEM	1.47	1.3	0.56	0.16
Min	9.8	22.7	0.8	0
Max	76.5	76.2	26.9	5.2
Median	34.9	54.6	8	0.7
Lower 95% CI	33.1	51.4	7.7	0.9
Upper 95% CI	39	56.6	9.9	1.5
Housed
Mean %	39.6	51.1	8	1.3
SEM	1.36	1.25	0.52	0.19
Min	8	21.2	0	0
Max	78	74.8	23	8.1
Median	37.8	52	7.6	0.8
Lower 95% CI	36.9	48.7	6.9	0.9
Upper 95% CI	42.2	53.6	9	1.7
P-value3 (grazing vs. housed)	0.18†	0.30†	0.59†	0.95‡

¹Mean of 123 cows/farm (range: 38 to 253 cows/farm) scored at VISIT1 (grazing) and 114 cows/farm (range: 40 to 232 cows/farm) scored at VISIT2 (housed).

²MS: 0) perfect mobility, 1) imperfect mobility, 2) impaired mobility/moderately lame, and 3) severely impaired mobility/severely lame.

³Bonferroni-corrected P-value for multiple comparisons of mean differences between VISIT1 and VISIT 2 (significant difference at P < 0.05). Tests were either paired t-tests for normally distributed variables (†) or Wilcoxon signed-rank tests for non-normally distributed variables (‡).