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. 2018 Jul 20;1(3):e180756. doi: 10.1001/jamanetworkopen.2018.0756

Table 2. Primary, Secondary, and Exploratory Outcomes From Baseline to 12 Months for Intermittent vs Continuous Groups (Intention-to-Treat Analysis)a.

Variable Mean (SEM) [95% CI] P Value for Time Mean (SEM) [95% CI] P Value for Diet by Time
Continuous Restriction Group Intermittent Restriction Group
Primary outcome
HbA1c, % −0.4 (0.1) [−0.6 to −0.2] <.001 −0.5 (0.2) [−0.8 to −0.2] −0.3 (0.1) [−0.6 to −0.08] .65
Secondary outcomes
Weight, kg −5.9 (0.6) [−7.1 to −4.8] <.001 −5.0 (0.8) [−6.6 to −3.5] −6.8 (0.8) [−8.5 to −5.1] .25
BMI −2.1 (0.2) [−2.5 to −1.7] <.001 −1.9 (0.3) [−2.4 to −1.3] −2.3 (0.3) [−2.9 to −1.7] .43
Total body fat, %b −1.8 (0.4) [−2.5 to −1.1] <.001 −1.6 (0.3) [−2.2 to −0.9] −2.3 (0.6) [−3.5 to −1.1] .20
Total fat mass, kgb −4.1 (0.5) [−5.0 to −3.2] <.001 −3.4 (0.6) [−4.6 to −2.2] −4.7 (0.7) [−6.1 to −3.4] .20
Total fat-free mass, kgb −1.8 (0.3) [−2.4 to −1.3] <.001 −1.6 (0.4) [−2.3 to −0.8] −2.1 (0.4) [−2.9 to −1.4] .11
Android fat, %b,c −3.8 (1.1) [−5.9 to −1.7] <.001 −2.0 (1.2) [−4.4 to −0.5] −5.6 (1.7) [−9.0 to −2.1] .23
Android fat mass, kgb −0.8 (0.2) [−1.2 to −0.5] <.001 −0.6 (0.2) [−1.1 to −0.2] −1.1 (0.2) [−1.5 to −0.6] .37
Android fat-free mass, kgb −0.3 (0.1) [−0.5 to −0.04] .05 −0.3 (0.2) [−0.6 to −0.02] −0.3 (0.2) [−0.6 to −0.08] .75
VAT, kgb −0.2 (0.06) [−0.3 to −0.1] <.001 −0.2 (0.09) [−0.4 to −0.02] −0.2 (0.09) [−0.4 to −0.08] .42

Abbreviations: BMI, body mass index (calculated as weight in kilograms divided by height in meters squared); HbA1c, hemoglobin A1c; VAT, visceral adipose tissue.

SI conversion factor: To convert HbA1c to proportion of total hemoglobin, multiply by 0.01.

a

Data were included for 137 participants (67 in the continuous energy restriction group and 70 in the intermittent energy restriction group) unless otherwise stated: mean (SEM) and 95% CI were estimated using an intention-to-treat analysis with a linear mixed model.

b

For a total of 128 participants (64 in the continuous energy restriction group and 64 in the intermittent energy restriction group) with weight greater than 130 kg or who declined dual-energy x-ray absorptiometry scan.

c

Percentage fat of tissue in the android region.