Table 5.

Tremor, rigidity, bradykinesia, gait disturbance, and retropulsion

From the onset	No.	Levodopa	Hoehn and Yahr	Tremor		Rigidity		Bradykinesia		Gait disturbance		Retropulsion
5 years or less	135	366 ± 223	2.24 ± 0.98	31	23.0%	49	36.3%	106	78.5%	95	70.4%	33	24.4%
6–10 years	158	610 ± 256	2.54 ± 0.94	21	13.3%	54	34.2%	127	80.4%	124	78.5%	45	28.5%
11–15 years	114	731 ± 285	2.91 ± 0.88	13	11.4%	62	54.4%	104	91.2%	97	85.1%	46	40.4%
16–20 years	53	741 ± 295	3.28 ± 0.94	9	17.0%	27	50.9%	49	92.5%	48	90.6%	28	52.8%
21 years or more	38	703 ± 251	3.00 ± 0.86	6	15.8%	15	39.5%	35	92.2%	36	94.7%	14	36.8%
Total	498	613 ± 297	2.66 ± 0.99	80	16.1%	207	41.6%	421	84.5%	400	80.3%	166	33.3%

Levodopa dose and Hoehn and Yahr indicate mean ± standard deviation in all the patients in respective classes