title: Duration of symptoms in brain tumors: influencing factors and its value in predicting malignant tumors.
abstract: BACKGROUND
  Although brain tumor is a common neurosurgical condition, diagnosis is generally made after long duration of symptoms. This may have negative impact on treatment outcome.
  
  
  OBJECTIVE
  Study the duration of symptoms of brain tumor, how it is influenced by various factors, and find their value in predicting malignant tumors.
  
  
  METHODS
  The authors retrospectively reviewed 185 patients with pathologically proven brain tumors. Pertinent data including age, types of tumors, locations of tumors, symptoms, and duration of symptoms were analyzed by univariate and multivariate analysis.
  
  
  RESULTS
  There were 70 males and 115 females. The mean age at diagnosis was 47.3 years. The average duration of symptoms was 471 days with median of 120 days. On univariate analysis, hormone symptoms (p = 0.001), age more than 45 years old (p = 0.005), malignant tumor (p < 0.001), auditory symptoms (p = 0.004), and motor symptoms (p < 0.001) had significant influence on duration of symptom. In multivariate analyses, malignant types of tumor, age, and hormonal symptoms were significant. In addition, there was higher risk of malignant brain tumor in patients with duration of symptoms 1 month or less (p < 0.001).
  
  
  CONCLUSIONS
  Certain factors were associated with longer duration of symptoms in brain tumors. This information may lead to early diagnosis of brain tumors. Furthermore, duration ofsymptoms of 1 month or less was suggestive of malignant brain tumors.
authors: Division of Neurosurgery, Faculty of Medicine, Chulalongkorn University Bangkok, Thailand. krbunya@yahoo.com
authors: Krishnapundha
authors: K
authors: Bunyaratavej
authors: Rungsak
authors: R
authors: Siwanuwatn
authors: Kraisri
authors: K
authors: Chantra
authors: Surachai
authors: S
authors: Khaoroptham
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D001932:Brain Neoplasms / Q000145:classification / Q000150:complications* / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D011379:Prognosis; D012189:Retrospective Studies; D012307:Risk Factors; D013997:Time Factors; D055815:Young Adult