Table 4.

Individual frailty index deficits for all aged mice

	Number of mice with deficit*					Per cent of mice with deficit
Score	0	0.25	0.5	0.75	1	0	0.25	0.5	0.75	1
Temperature	32	19	0	0	0	62.7	37.3	0.0	0.0	0.0
Body weight	11	31	8	1	0	21.6	60.8	15.7	2.0	0.0
Score	0		0.5		1	0		0.5		1
Alopecia	16		26		9	31.4		51.0		17.6
Loss of fur colour	9		32		10	17.6		62.7		19.6
Dermatitis	29		9		13	56.9		17.6		25.5
Loss of whiskers	41		4		6	80.4		7.8		11.8
Coat condition	8		27		16	15.7		52.9		31.4
Tumours	25		24		2	49.0		47.1		3.9
Distended abdomen	9		14		28	17.6		27.5		54.9
Kyphosis	3		12		36	5.9		23.5		70.6
Tail stiffening	27		20		4	52.9		39.2		7.8
Gait disorders	3		27		21	5.9		52.9		41.2
Tremor	16		21		14	31.4		41.2		27.5
Forelimb grip strength	3		35		13	5.9		68.6		25.5
Body condition score	1		17		33	2.0		33.3		64.7
Vestibular disturbance	26		23		2	51.0		45.1		3.9
Hearing loss	3		7		41	5.9		13.7		80.4
Cataracts	50		1		0	98.0		2.0		0.0
Corneal capacity	47		3		1	92.2		5.9		2.0
Eye discharge/swelling	38		10		3	74.5		19.6		5.9
Microphthalmia	45		6		0	88.2		11.8		0.0
Vision loss	1		16		34	2.0		31.4		66.7
Menace reflex	2		3		46	3.9		5.9		90.2
Nasal discharge	47		4		0	92.2		7.8		0.0
Malocclusions	47		4		0	92.2		7.8		0.0
Rectal prolapse	50		1		0	98.0		2.0		0.0
Penile/uterine prolapse	50		1		0	98.0		2.0		0.0
Diarrhoea	51		0		0	100		0.0		0.0
Breathing rate/depth	17		28		6	33.3		54.9		11.8
Mouse grimace scale	36		15		0	70.6		29.4		0.0
Piloerection	0		0		51	0.0		0.0		100

^*Individual deficits used to create FI scores for 51 aged mice.