Sleep features and central sensitization symptoms in primary headache patients

Table 3 Pearson correlation analysis among central sensitization symptoms and other clinical features in the total of primary headache patients and main subgroups

ALLODYNIA	FREQUENCY	MIDAS	ALLODYNIA	TTS	SAS	SDS
All (n°1670)	0.085 ^*	0.296 ^**	1	0.228 ^**	0.296 ^**	0.292 ^**
Migraine (1.1) (n° 800)	0,103**	0.213 ^**	1	0.133 ^**	0.274 ^**	0.207 ^**
Migraine (1.2 and 1.2 plus1.1) (n°105)	0.204*	0.223*	1	0.225^*	0.284 ^**	0.374 ^**
Chronic Migraine 1.3 (n°333)	0.321**	0.345**	1	0.367**	0.267**	0.336**
Chronic tension type headache2.3 (n°133)	0.09	0.187*	1	0.289**	0.334**	0.310**
Episodic tension type headache 2.2 (n°111)	0,118	0,400**	1	0.280**	0.334**	0.362**
TTS
All (n°1670)	0.199 ^**	0.188 ^**	0.228 ^**	1	0.251 ^**	0.216 ^**
Migraine (1.1) (n° 800)	0.219 ^**	0.213 ^**	0.133 ^**	1	0.203 ^**	0.232**
Migraine (1.2 and 1.2 plus1.1) (n°105)	0.242*	0.326 ^**	0.225*	1	0.292 ^* °	0.327 ^**
Chronic Migraine 1.3 (n°333)	0.180**	0.226 ^**	0.367**	1	0.270 ^* °	0.227 ^**
Chronic tension type headache2.3 (n°133)	0.180*	0.226 ^**	0.289**	1	0.269 ^* °	0.228 ^**
Episodic tension type headache 2.2 (n°111)	0,253*	0.133	0.280**	1	0.245*	0.362**

The IHS specification code is indicated: 1.1 migraine without aura; 1.2 migraine with aura; 1.3 chronic migraine; 2.3 chronic tension type headache; 2.2 episodic tension type headache.
The significant results are outlined in bold. **p < 0.01. The p values < 0.05 are indicated by the symbol *, but not outlined.
TTS Total Tenderness Score.
SAS: Self rating Anxiety Scale.
SDS: Self rating Depression Scale.

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