Table 2.

Ataxic and non ataxic features of patients with SCA 12.

Age at onset:	46.38 ± 11.7 years
Duration of illness:	9.20 ± 9.5 years
Age at presentation:	53.16 ± 12.78 years
Symptom at onset:	Total numbers	%
Tremors	36	73.5%
Ataxia	9	18.4%
Myoclonus	3	6.1%
Behavioural changes	1	2%
Symptom at presentation
Tremors	47	95.9%
Ataxia	36	73.5%
Cognitive dysfunction	11	22.4%
Urinary disturbance	10	20.4%
Psychiatric disturbance	4	8.1%
Myoclonus	3	6%
Extrapyramidal symptoms	3	6%
Sensory Symptoms	1	2%
Tremor	47	95.9%
Duration	7.13 ± 4.28 years
Side and site at onset
Right UL	26	53.1%
Bilateral	17	34.7%
Left UL	2	4.1%
Head	2	4.1%
Side of appendicular tremor at presentation
Bilateral               –Symmetrical               –Right>Left	42 –35 –7	85.7% –71.4% –14.3%
Right UL	2	4.1%
Head	2	4.1%
Left UL	1	2%
Type of tremor
Postural	43	87.7%
Intentional	28	57.1%
Kinetic	13	26.5%
Rest	18	36.7%
Head tremor	27	55.1%
Voice tremor	21	42.8%
Jaw tremor	5	10.2%
Tongue tremor	5	10.2%
History of Imbalance at presentation	36	73.5%
Duration	4.88 ± 3.86 years
Ataxia on examination	44	89.8%
Impaired tandem gait	44	89.8%
Dysmetria	37	75.5%
Dyssynergia	33	67.3%
Dysdiadokinesia	33	67.3%
Dysarthria	28	57.1%
Saccadic abnormality	13	26.5%
Broken pursuits	14	28.6%
Nystagmus	10	20.4%
Need for walking aid	8	18.2%
Pyramidal system
Hyperreflexia	23	46.9%
Spasticity	9	18.4%
Extensor plantar	4	8.2%
Extrapyramidal system
Rigidity	7	14.2%
Bradykinesia	15	30.6%
Chorea	1	2%
Dystonia	4	8.2%

Abbreviations: UL- Upper Limb, DTR- deep Tendon Reflexes.