Table 2.
Clinical features of headache not associated with mobile phone use (HNAMP).
| HAMP participants N (%) |
Non-HAMP participants N (%) |
p value | |
|---|---|---|---|
| Headache not associated with mobile phone use, lasing ≥ 30 min. | 23 (57.5)* | 112 (65.1)* | NS |
| Moderate or severe intensity | 13 (35.1)† | 51 (33.1)† | NS |
| Unilateral pain | 19 (51.4)† | 68 (44.2)† | NS |
| Pulsating quality | 14 (37.8)† | 52 (33.8)† | NS |
| Aggravation of headache by routine activity | 9 (24.3)† | 24 (15.64)† | NS |
| Nausea | 4 (10.8)† | 12 (7.8)† | NS |
| Photophobia | 6 (16.2)† | 24 (15.6)† | NS |
| Phonophobia | 28 (75.7)† | 72 (46.8)† | 0.002 |
| ID-migraine (%) | 4 (10.8)† | 13 (8.4)† | NS |
NS: not significant. *From all participants at initial questionnaire survey (40 participants with HAMP and 172 participants without HAMP). †From participants with headache not associated with mobile phone use (37 HAMP participants and 154 Non-HAMP participants).