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Table 3 Summary of study design and population characteristics of the intervention in the evidence map

From: Creating a literature database of low-calorie sweeteners and health studies: evidence mapping

Intervention studies (n = 208)

Study design

N (%)

Population

N (%)

 RCT-c

119 (57.7)

 Adults

183 (88 %)

 RCT-p

58 (27.9)

 Children

14 (7 %)

 nRCT-c

21 (10.1)

 Adolescents

2 (1 %)

 nRCT-p

2 (1.0)

 Mixed

6 (3 %)

 Single arm

6 (2.9)

 Unsure

2 (1 %)

 Unclear

1 (0.5)

Baseline health

N (%)

Length

N (%)

 Healthy

140 (68 %)

 < 1 day

124 (60.1)

 Overweight/Obese

19 (9 %)

 2 day-1 month

37 (17.8)

 Diabetic

17 (8 %)

 1–6 months

30 (14.4)

 Mixed

14 (7 %)

 6 months–1 year

1 (0.5)

 Other

17 (8 %)

 > 1 year

7 (3.3)

Age, Mean (Range)

31 (8–73)

 Not reported

8 (3.8)

BMI, Mean (Range)

25.6 (16.1–42.3)

Sample size, Mean (range)

48 (2–732)

% Male

51 % (0–100 %)

  1. Data missing for age: n = 2, % male, n = 29, and BMI n = 87. RCT-c Randomized controlled trial-crossover design, RCT-p Randomized controlled trial-parallel design, nRCT-c Non-randomized controlled trial-crossover design, nRCT-p Non-randomized controlled trial-parallel design. Mixed or other: A mixture of healthy and overweight, healthy and diabetic, or overweight and diabetic population, and other population: patient or people with disease at baseline
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BMC Medical Research Methodology

ISSN: 1471-2288

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