Orthopaedic health status of horses from 8 riding schools - a pilot study

Table 5 Results from linear regressions of examiner (comparing CJ to the baseline LR); age variables¹ and insurance category on the indexes, with riding school (n = 8) as a repeated (random) variable

Index Variable	Category	Estimate	SE	P-value
MOVE (n = 99)²	Intercept	2.39	0.42
Examiner	CJ	0.85	0.33	0.05
Age	<9 years (BL)	0		0.01
	9 < 12 years	0.06	0.49
	12 < 15 years	0.84	0.55
	> = 15 years	1.64	0.51
Insurance user	High	0.31	0.38	0.46
BACK (n = 95)	Intercept	0.69	0.16
Examiner	CJ	0.28	0.10	0.04
Age at acquisition	< 5 years (BL)	0		0.05
	5 < 7 years	0.59	0.23
	7 < 8 years	0.63	0.25
	> = 8 years	0.25	0.23
Insurance user	High	0.16	0.13	0.27
LIMBS (n = 95)	Intercept	3.34	0.47
Time at riding school	< 2 years (BL)	0		0.03
	2 < 5 years	0.28	0.47
	5 < 8 years	-0.64	0.49
	> = 8 years	0.89	0.48
Insurance user	High	-0.23	0.52	0.67
TOT-HEALTH (n = 95)	Intercept	4.49	1.05
Examiner	CJ	1.69	0.57	0.03
Age	linear	0.25	0.07	0.00
Insurance user	High	1.18	0.66	0.13

¹ age, time at riding school or age at acquisition- the best form, linear or categorical, chosen during modelling and only the most significant kept; ² number of observations included

ISSN: 1751-0147