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. 2011 Aug 26;11:144. doi: 10.1186/1471-244X-11-144

Table 7.

Gaming and self-reported health impairment and DAS responses

Variables Total sample of population Over threshold DAS (+) Below threshold DAS (-) Univariate analysis Multivariate analysis
Mean S.D. Mean S.D. Mean S.D. Statistical tests Corrected p-value Odds Ratio (95%CI) Corrected p-value

Effect on sleep
Hours slept per night 7.1 (4-14) 1.3 6.8 1.4 7.2 1.3 t = 2.74 0.043 0.78 0.004
(0.66-0.93)
Number % Number % Number %
Restful sleep
 no 86 19.1 46 53.5 40 46.5 χ2 = 36.82 < 10-3 0.23 < 10-3
 yes 364 80.9 76 21.1 285 78.9 1df (0.14-0.38)
Deprivation of sleep due to play
 no 285 63.2 55 19.4 228 80.6 χ2 = 24.01 < 10-3 2.83 < 10-3
 yes 166 36.8 67 40.9 97 59.1 1df (1.83-4.38)
Daytime sleepiness
 no 348 77.3 74 21.5 270 78.5 χ2 = 27.712 < 10-3 3.10 < 10-3
 yes 102 22.7 49 48 53 52 1df (1.92-5.00)
Effect on mood
Happier 87 24.1 31 36.5 54 63.5 χ2 = 58.82 < 10-3 1 < 10-3
More irritable 45 12.5 27 60 18 40 4df 2.56
(1.19-5.48)
More anxious 8 2.2 4 50 4 50 1.69
(0.39-7.34)
More sad 17 4.7 15 88.2 2 11.8 12.48
(2.64-59.06)
More calm 204 56.5 38 18.8 164 81.2 0.39
(0.22-0.69)
Effect on health
None 333 74.7 67 20.2 264 79.8 χ2 = 37.41 < 10-3 1 < 10-3
Psychological effect 73 16.4 32 45.1 39 54.9 3df 3.21
(1.86-5.56)
Physical effect 29 6.5 14 48.3 15 51.7 3.23
(1.44-7.22)
Both effects 11 2.5 8 72.7 3 27.3 14.09
(2.89-68.61)
Confusing real life vs fiction
 no 422 93.8 104 24.9 314 75.1 χ2 = 20.51 < 10-3 5.01 < 10-3
 yes 28 6.2 18 64.3 10 35.7 1df (2.21-11.34)

Odds ratio and p-value were adjusted for age, sex and educational level.

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