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. 2014 Jul 1;2014:473250. doi: 10.1155/2014/473250

Table 2.

Summary of clinical characteristics between patients with ALS and normal controls in subgroups.

R_limb-onset
(n = 20)
R_NC
(n = 20)
P 1 L_limb-onset
(n = 16)
L_NC
(n = 16)
P 2 P 3
Age 57.5 ± 8.1 
(55.8 ± 8.0)a
56.0 ± 6.4 0.520 48.4 + 9.7 
(47.4 ± 9.9)a
50.6 ± 9.0 0.515 0.005 
0.008a
Male, n 14 14 1 9 9 1 0.307
MMSE 27.5 ± 2.1 28.8 ± 1.2 0.051 28.9 ± 1.6 29.2 ± 1.0 0.508 0.055
ALSFRS 27.7 ± 6.6 n/a 32.3 ± 6.3 n/a 0.043
Disease duration (months) 20.9 ± 20.8 n/a 13.8 ± 6.9 n/a 0.239
Disease progression rate 1.12 ± 0.88 n/a 0.66 ± 0.62 n/a 0.088

R_NC: normal controls corresponding to patients with right limb-onset; L_NC: normal controls corresponding to patients with left limb-onset. aMean age of disease onset in patients with right and left limb-onset and corresponding P value.

P 1 represents the statistical differences in ALS patients with right limb-onset and corresponding normal controls. P 2 represents the statistical differences in ALS patients with left limb-onset and corresponding normal controls. P 3 represents the statistical differences in subgroups between ALS patients with right and left limb-onset.