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Table 5 Logistic regression models selected with backward elimination procedure predicting symptoms during and after the movie vision

From: A survey of visually induced symptoms and associated factors in spectators of three dimensional stereoscopic movies

Symptom Predictor variables
  During the movie After the movie
Tired eyes Head ache often and very often 1.34 (1.01-1.79) Animation movie 0.65(0.48-0.87) Car sickness often and very often 0.67 (0.47-0.97) Self perceived high anxiety level 1.58 (1.03-2.40)
Double vision Headache often and very often 1.96 (1.13-3.41) -
Headache Headache often and very often 2.09 (1.41-3.10) Car sickness often and very often 1.52 (1.04-2.22) Self perceived high anxiety level 1.88 (1.20-2.94) Headache often and very often 1.64 (1.16-2.32) Showtime late 1.49 (1.03-2.16)
Dizziness Dizziness often and very often 1.81 (1.00-3.27) Animation movie 2.32 (1.17-4.57) Dizziness often and very often 2.38 (1.30-4.35)
Nausea Car sickness often and very often 3.07(1.69-5.60) Car sickness often and very often 2.83 (1.54-5.18)
Palpitations Car sickness often and very often 5.93(3.21-10.97) Dizziness often and very often 5.45(3.03-9.79) -
  1. All models are adjusted for age, gender, educational level, employment status and movie appreciation. For each symptom, the OR and 95%IC of significant predictor variables (p < 0.05) are shown. Footnotes: - not computable because of low compliancy (<5%).