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["Table 3: Intervention and Control Characteristics, Outcomes, Follow-up Time Points and Key Findings for Studies Investigating the Effects of Internet-based Interventions "]
["Authors & Year","Interventions","Intervention Intensity & Duration","Outcomes","Follow-up Time Points","Key Findings","Weight-related Outcomes","Mean Difference","P-Value*"]
[{"$nulls":7},"(95% CI)"]
["Chen et al., 2011","1) Tailored web-based intervention","Weekly online sessions for 8 weeks","1) BMI","2, 6, and 8 months","Statistically significantly more adolescents in the intervention group than the control group had: ","BMI (kg/m2)",null,0.84]
[{"$nulls":3},"2) WHtR",null,"- decreased their WHtR (-0.01, p=0.02) "]
[null,"2) General health, web-based information",null,"3) BP",null,"- decreased their DBP (−1.12, p=0.02) "]
[{"$nulls":3},"4) Dietary intake",null,"- increased PA as measured by the actigraph (12.46, p=0.01)"]
[{"$nulls":3},"5) PA; knowledge and self-efficacy ",null,"- increased FV intake (0.14, p=0.001)",null,0.01]
[{"$nulls":3},"6) Nutrition",null,"- increased knowledge of PA (0.16, p=0.008) and nutrition (0 .18, p=0.001) ",null,"(-0.03, 0.04)"]
[]
[{"$nulls":5},"- Statistically significant within group changes for the intervention group included WHtR, DBP, PA, FV intake and knowledge related to PA and nutrition (p<0.05)"]
[{"$nulls":6},"WHtR",-0.01,0.02]
[{"$nulls":5},"-There were no statistically significant changes for any outcomes in the control group",null,"(-0.01, -.001)"]
[{"$nulls":6},"% BF",-0.24,0.06]
[{"$nulls":7},"(-0.49, 0.01)"]
["Ezendam et al., 2012","1) FATaintPHAT- computer-tailored intervention","15 minutes allocated for each of 8 lessons timetabled into regular school curriculum over 10 weeks","1) Self-reported behaviours (diet, PA, sedentary behaviour) ","4 months and 2 years","Among the students at risk, those in the intervention group, compared to the control group:","BMI (kg/m2)",null,0.37]
[null,"2) No intervention control group",null,"2) Pedometer counts",null,"- reported eating more FV at 4-month follow-up (0.3, p=0.02)",null,0.25]
[{"$nulls":3},"3) BMI",null,"- reported more steps at 2-year follow-up (12389, p=0.03)"]
[{"$nulls":3},"4) WC",{"$nulls":3},"(-0.29, 0.79)"]
[{"$nulls":3},"5) Fitness",null,"- The intervention had no effects on anthropometric outcomes or on sedentary behaviour"]
[]
[{"$nulls":5},"- Among the total population, those in the intervention group, compared to the control group, were associated with lower odds (0.54) of drinking more than 400 ml of sugar sweetened beverages per day","WC (cm)",1.3,0.08]
[{"$nulls":7},"(-0.12, 2.72)"]
["Jones et al., 2008","1) SB2-BED - an internet-based weight maintenance program","Over 16 weeks, a new topic was introduced weekly with previous content accessible at any time","1) BMI","Post treatment and 9 months","- Compared to the wait- list control group, the SB2-BED group had signiﬁcantly reduced weight and shape concerns from baseline assessment to follow-up assessment at 9 months (-0.33, p=0.03)","BMI (kg/m2)",-1.4,0.26]
[{"$nulls":3},"2) Binge eating behaviours",null,"- No difference in all other outcomes between groups",null,"(-3.87, 1.05)"]
[null,"2) Wait-list control group",null,"3) Dietary fat and sugar intake",null,"- Statistically signiﬁcant reductions in OBEs and SBEs from baseline assessment to posttreatment assessment (p<0.01) and from baseline assessment to follow-up assessment (p<0.05) were observed among SB2-BED participants"]
[{"$nulls":3},"4) Depression "]
[{"$nulls":3},"5) Programme adherence",null,null,"BMI z-score",-0.16,0.21]
[{"$nulls":7},"(-0.41, 0.09)"]
["Nawi & Jamaludin., 2015","1) ObeseGO! – healthy lifestyle website","12 weeks","1) BMI","Post treatment and at 12 weeks post-intervention","- There was no statistically significant reduction in BMI, WC or BF % between the intervention and control groups","BMI (kg/m2)",-0.49,0.61]
[{"$nulls":3},"2) WC",null,"-  The mean BMI, WC and % BF in the obeseGO! group were statistically significantly lower after the intervention (p<0.001, p=0.001, p=0.001)",null,"(–2.41, 1.42)"]
[null,"2) Health education pamphlets ","Intensity not stated","3) % BF",null,null,"WC (cm)",-1.57,0.5]
[{"$nulls":7},"(–6.18, 3.03)"]
[{"$nulls":6},"% BF",0.09,0.93]
[{"$nulls":7},"(–2.14, 2.33)"]
["Williamson et al., 2006","1) Interactive behavioural internet programme","Programmes continuously available for use over 24 months","1) BMI","6, 12, 18 and 24 months","- In comparison with the control group, adolescents in the behavioural programme statistically significantly reduced their % BF (-1.12 (0.47) vs 0.43 (0.47), p<0.05) during the first 6 months. However, after 2 years, % BF did not differ between the two groups (-0.08 (0.71) vs. 0.84 (0.72), p>0.05)","Body weight (kg)",-1.9,0.42]
[null,"2) Passive internet health education programme ",null,"2) BMI percentile",{"$nulls":3},"(-6.48, 2.68)"]
[{"$nulls":3},"3) Body weight",null,"-  Adolescents in both the treatment and control groups reported improvement in exercise and overeating, in comparison with baseline (p<0.05)"]
[{"$nulls":3},"4) % BF",null,null,"BMI (kg/m2)",-0.47,0.61]
[{"$nulls":3},"5) Weight loss behaviours: dieting, weight concerns, exercise, overeating, and avoidance of fattening foods ",{"$nulls":3},"(-2.29, 1.35)"]
[{"$nulls":3},"6) Website use",null,null,"% BF",-0.9,0.37]
[{"$nulls":7},"(-2.9, 1.06)"]
[{"$nulls":6},"BMI percentile",-0.003,0.48]
[{"$nulls":7},"(-0.011, 0.0053)"]
["*P-values in bold are statistically significant at 5% significance level "]