Njike et al., 2011 (30) |
Added two servings per day of sugar-free cocoa, sugared cocoa, or placebo cocoa in obese adults in a crossover trial, six weeks each phase. |
Meta-analyzed all response data for all phases (author provided raw data on request) – combined both caloric groups (sugared cocoa and placebo cocoa) and subtracted sugar-free group. |
Trial Registry: NCT00538083.
Primary - Endothelial function
Secondary - Blood pressure, lipid profile, low-density lipoprotein (LDL) oxidation, lipid hydroperoxide, C-reactive protein (CRP), glucose, body weight, waist circumference, endothelin
Paper:
Primary - Endothelial function
Secondary - Blood pressure, lipid profile and fasting glucose, food intake, endothelin, CRP, oxidized LDL, lipid hydroperoxide, anthropometric measures (body weight, body mass index (BMI), waist circumference)
Missing Data Handling: Intention to treat analysis
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Vaz et al., 2011 (36) |
Added choco-malt beverage mix to water and gave one serving per day to children in a parallel trial. |
Meta-analyzed untreated control group versus unfortified group.*
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Trial Registry: NCT00876018
Primary - Physical fitness and performance
Secondary - Nutritional status, muscle strength and endurance
Paper:
Primary – Within participant change in physical performance: whole-body endurance, aerobic capacity, speed and visual reaction time
Secondary – Nutritional status, muscle strength, endurance in forearm flexor muscle group
Missing Data Handling: Complete case analysis
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Maersk et al., 2012 (34) |
Added 1 liter per day of milk, regular cola, diet cola, or water in overweight/obese adults in a parallel trial for six months. |
Meta-analyzed regular cola group versus diet group. |
Trial Registry: NCT00777647
Primary - Body weight, magnetic Resonance spectroscopy, magnetic resonance imaging, dual-energy x-ray absorptiometry scan
Secondary - Circulating metabolic parameters, blood pressure
Paper:
Primary - intrahepatic fat and intramyocellular fat
Secondary - fat mass, fat distribution, metabolic risk factors
Missing Data Handling: complete case analysis except for two cases who dropped out at 5 months, for whom last observation was carried forward
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Ebbeling et al., 2012 (33) |
Multi-component program to reduce/replace SSBs with noncaloric beverages in adolescents. |
Meta-analyzed weight change at end of one-year intervention period. |
Trial Registry: NCT00381160
Paper:
Primary – Change in mean BMI at two years (one year post-intervention)
Secondary – differences between ethnicities, change in body fat as a percentage of total weight
Missing Data Handling: Imputed - baseline and last observation carried forward in separate analyses
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de Ruyter et al., 2012 (29) |
Provided school children identically labeled SSB or non-caloric equivalent to consume one can/day. |
Considered an SSB reduction study as inclusion criteria was current SSB consumers. |
Trial Registry: NCT00893529
Primary - BMI Z-score at 6, 12, and 18 months
Secondary – Body composition using skinfolds, bioelectrical impedance analysis (BIA), waist-to-height ratio, dental health, sensory evaluation (satiety and liking of study drink)
Paper:
Primary - Z-score of BMI for age at 18 months.
Secondary – (all pre-specified) waist-to-height ratio, sum of the four skinfold thickness measurements, and fat mass (BIA). Additional outcomes were weight, height, z score for height, waist circumference, and weight change adjusted for height change
Missing Data Handling: multiple imputation and complete case analysis
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Tate et al., 2012 (35) |
Substituted SSBs with artificially sweetened equivalent or water in obese adults who drink two or more servings per day at baseline. |
Meta-analyzed water and artificially sweetened groups together versus SSB group. |
Trial Registry: NCT01017783
Paper:
Primary - Weight change at 6 months.
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Secondary - compare the non-caloric beverage groups with the control group on criterion measures of weight loss, waist circumference, blood pressure, glucose, and osmolality from 0 to 3 and 0 to 6 months
Missing Data Handling: Multiple imputation for continuous variables, complete cases for 5% weight loss criterion analysis
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