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Table 2 Possible factors influencing recall of mobile telephone use

From: How well do adolescents recall use of mobile telephones? Results of a validation study

Predictors   Call number Call duration
  N ρ* P value‡ ρ* P value ‡
Overall 59 0.3 0.04 0.1 0.37
   Gender      
Females 36 0.3 0.08 0.1 0.64
Males 23 0.2 0.50 0.2 0.37
   Age      
<13 30 0.2 0.30 0.02 0.90
≥ 13 29 0.3 0.07 0.1 0.56
Parental risk perception      
No risk 4 0.3 0.68 -0.8 0.20
Low risk 12 0.3 0.40 0.6 0.02
Moderate/high risk 7 0.3 0.48 -0.1 0.80
Don't know 36 0.3 0.12 0.1 0.50
Language other than English spoken at home      
No 44 0.2 0.10 0.3 0.06
Yes 15 0.3 0.24 -0.4 0.13
School system      
   Catholic 10 0.5 0.20 0.1 0.74
   Independent 13 0.3 0.37 0.1 0.64
   Government 36 0.2 0.29 0.1 0.60
Socioeconomic status      
Most disadvantaged 6 0.4 0.47 -0.4 0.47
2nd quintile 2 1   0.7 0.01
3rd quintile 12 0.2 0.80 0.2 0.48
4th quintile 16 0.6 0.01 0.3 0.70
Most advantaged 23 0.05 0.80 -0.03 0.90
  1. *Spearman's correlation coefficient
  2. ‡ P value – self reports and logged results are independent