[Test-retest reliability of Mandarin monosyllable lists: a multi-center study in Chinese dialectal regions].

Objective: To develop 22 Chinese Mandarin monosyllable lists with good psychometrical equivalence. This study was to evaluate the test-retest reliability of these lists when it was used in speech recognition test in normal hearing dialectal speakers.

Methods: Seven cities including Dalian, Shanghai, Hangzhou, Wuhan, Guangzhou, Fuzhou and Xiamen were selected as testing centers which contain 6 typical Chinese dialectal regions including north of China, East of China, north of Fujian, south of Fujian, Guangdong and mid-south of China.

[Pathogenesis of benign paroxysmal positional vertigo].

Objective: To explore the etiological factors of benign paroxysmal positional vertigo (BP-PV).

Methods: The clinical data of 145 patients with BPPV were retrospectively reviewed. The impacts of gender and age on BPPV were analyzed.