Table 7 Sequential regression with social orientation activities of daily living score as the outcome.

Step	Variable	R2	R2 change	F change**	β	p Value
1		0.04	0.04	5.67
	Age				−0.06	0.194
	Sex				0.03	0.577
	Education				0.19	<0.001
2		0.05	0.01	7.53
	Age				−0.04	0.340
	Sex				0.03	0.574
	Education				0.19	<0.001
	UPDRS‐III motor				−0.13	0.006
3		0.15	0.10	27.20
	Age				−0.02	0.687
	Sex				0.03	0.548
	Education				0.12	0.012
	UPDRS‐III motor				−0.07	0.095
	Verbal interaction				−0.27	<0.001
	Verbal cognitive				−0.20	<0.001
4		0.20	0.05	26.58
	Age				−0.01	0.912
	Sex				0.07	0.121
	Education				0.16	0.001
	UPDRS‐III motor				−0.04	0.331
	Verbal interaction				−0.27	<0.001
	Verbal cognitive				−0.19	<0.001
	Attention				−0.23	<0.001

UPDRS, Unified Parkinson's Disease Scale.

β is standardised.

**F change significant at p<0.01.