Study Chen et al. (2005): study JP 1999
- Public
- 9-10 aged children followed 3 years, Japan 1999-2002
- Survey name
- JP-Toyama Birth Cohort Study
- Sample
- Respondents
- N = 7794
- Non Response
- 14,4%
- Assessment
- Questionnaire: Paper & Pencil Interview (PAPI)
Correlate
- Authors's Label
- Video game playing
- Our Classification
-
-
- Error Estimates
- T1-T2 correspondence r=+,13
- Remarks
- Assessed at T1 and T2 with 3 year difference
- Distribution
- N= 1:3460(44,4)%; 2: 904 (11,6)%; 3:2167(27,8)% ;4:1263 (16,2)%
- Operationalization
- Self report on question on hours Video game playing:
1:<1 h,<1 h
2:<1 h,≥1 h
3:=<1 h,<1 h
4:≥1 h,≥1 h
Observed Relation with Happiness
%happy %unhappy difference
- remained <1h 42,1 57,9 -15,8
- <1h to ≥1h 41,8 58,2 -16,4
- =<1h to <1h 42,5 57,5 -15
- remained ≥1 h 39,4 60,6 -21,2
Remained <1h
vs <1h to ≥1h OR=1,01 CI95[0,86-1,11]
vs <1h to <1h OR=0,95 CI95[0,84-1,06]
vs remained ≥1 h OR=1,18 CI95[1,02-1,36]
OR not controlled
Remained <1h
vs <1h to ≥1h OR=1,03 CI95[0,88-1,22]
vs =<1h to <1h OR=1,07 CI95[0,94-1,22]
vs remained ≥1 h OR=1,37 CI95[1,17-1,61]
OR controlled for
- age
- sexe
- T1 BMI
Remained <1h
vs <1h to ≥1h OR=0,97 CI95[0,81-1,16]
vs =<1h to <1h OR=1,07 CI95[0,94-1,23]
vs remained ≥1 h OR=1,24 CI95[1,04-1,47]
OR controlled for
- age
- sexe
- T1 BMI
- Preference for physical activity
- Frequency of physical activity
- Television viewing
- Bedtime
- Sleep duration
T1-t2 difference: 3 years