Table 3.

Correlation coefficients between the NHPT and other outcome measures on activity level.

Study	N	Sample characteristics	Measures	Correlation coefficients
Bovend’Eerdt et al.19	26b	7 persons with MS	Jebsen Taylor hand function test (modified)	r = 0.86*–0.88*19
		Mean age: 51 years
		Mean disease duration: 6.5 years
		Mean ± SD NHPT (s/peg) = 0.55 ± 0.33
Feys et al.29	43	Mean age: 46 years	Jebsen Taylor hand function test (modified)	ρ = 0.83a–0.95a29
		Mean EDSS: 7	TEMPA—functional rating	ρ = −0.79a to −0.90a29
		Mean disease duration: 15 years	TEMPA—speed	ρ = 0.81a–0.90a29
		Mean ± SD left NHPT (s) = 77 ± 52
		mean ± SD right NHPT (s) = 69 ± 53
Goodkin et al.11	68	Mean age: 47.16 years	Box and block test	r = −0.70a11
		Mean EDSS: 4.73
		Mean disease duration 11.32
		Mean ± SD NHPT (s) = 32.15
Lamers et al.25	30	Mean age: 58.2 years	Motor activity log	ρ = −0.56* to −0.79*25
		Median EDSS: 7.5	Accelerometry of the upper limbs	ρ = 0.04 to −0.66*25
		Mean disease duration: 21.8 years
		Median Dom NHPT (s) = 45.99
		Median NDom NHPT (s) = 104.91
Lamers et al.16	105	Mean age: 53.7 years	Action Research Arm Test	r = 0.66*16
		Median EDSS: 6.5	Manual Ability Measure-36	r = 0.66*16
		Mean disease duration: 17.9 years
		Median NHPT (pegs/s) = 0.25
Simone et al.30	150b	17 persons with MS	Box and block test	r = −0.41*30
		Mean age: 57 years	Purdue pegboard test	r = −0.52*30
			ABILHAND	r = −0.37*30
		Mean ± SD NHPT (s) = 25 ± 11
Marrie and Goldman31	44	Mean age: 42.2 years	Performance Scales: hand	ρ = −0.59*31
		Median EDSS: 3.5
		Mean disease duration: 8.3 years
		Mean ± SD NHPT (Z-score) = 0.18 ± SD

NHPT: Nine-Hole Peg Test; EDSS: Expanded Disability Status Scale; MS: multiple sclerosis; SD: standard deviation.

Values are the ranges of Spearman correlation coefficients (ρ) or Pearson correlation coefficients (r) found between outcome measures reported in different articles.

^aSignificance not reported.

^bNot only people with MS were included.

^*p < 0.05.