Table 4

Slow spindle percentage in OSA according to topography and night sections
Total Non-OSA Mild OSA Mod OSA Chi-square df
(28) (7) (11) (10)
Location Night Section
Frontal total∗∗∗ 72.3 66.4 71.0 78.8c,f 39,623 2
I 72.1 68.3 71.2 76.1 6,041 2
II∗∗ 75.6 75.2 70.8 81.3c 12,242 2
III∗∗∗ 69.0 57.7 70.9c 79.2a,f 33,613 2
Central total∗∗∗ 47.7 32.6 45.7c 61.7c,f 192,429 2
I∗∗∗ 53.1 41.4 48.6 65.7c,f 50,435 2
II∗∗∗ 43.8 26.7 42.3c 55.9c,f 63,836 2
III∗∗∗ 46.4 29.5 46.3c 64.1c,f 86,224 2
Parietal total∗∗∗ 32.6 17.9 29.9c 50.9c,f 297,793 2
I∗∗∗ 38.9 23.2 34.7c 57.4c,f 101,732 2
II∗∗∗ 27.0 17.4 22.8 41.9c,f 71,609 2
III∗∗∗ 32.4 13.3 32.7c 54.1c,f 133,466 2

Mod, moderate; df, degrees of freedom; Location, scalp EEG topography; total, (I+II+III) sample; I, II and III, initial, middle and final night sections, respectively. P-value significance as follows: <0.05, ∗∗<0.01, ∗∗∗<0.001. Significance of post-hoc inter-group comparisons (with Bonferroni correction for multiple comparisons) as follows: a<0.05, b<0.01, c<0.001 for contiguous comparisons; d<0.05, e<0.01, f<0.001 for non-contiguous comparisons.

Schönwald et al.

Schönwald et al. BMC Neuroscience 2012 13:89   doi:10.1186/1471-2202-13-89

Open Data