Table 1.

Age and sex of subjects

Age group	Life stage	Age (years)	Male	Female	Total
Group 1	Late puppyhood	0.5 to 1	10	13	23
Group 2	Adolescence	>1–2	10	13	23
Group 3	Early adulthood	>2–3	9	10	19
Group 4	Middle age	>3–6	9	12	21
Group 5	Late adulthood	>6–8	13	8	21
Group 6	Senior	>8–10	10	9	19
Group 7	Geriatric	>10	8	11	19
Total			69	76	145