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Table 3 Relative importance of predictors of energy intake (kcal/meal)a

From: Correction to: Meal analysis for understanding eating behavior: meal- and participant-specific predictors for the variance in energy and macronutrient intake

Covariatesb Breakfast Lunch Afternoon snack Dinner
Beta-weight (95%CI)c Correlation (95%CI) Pratt Index (95%CI) Beta-weight (95%CI) Correlation (95%CI) Pratt Index (95%CI) Beta-weight (95%CI) Correlation (95%CI) Pratt Index (95%CI) Beta-weight (95%CI) Correlation (95%CI) Pratt Index (95%CI)
Intake-level covariates
Week/weekend day (y/n) 0.10 (0.04;0.14) 0.11 (0.06;0.16) 24%d(5;46) 0.04 (− 0.01;0.09) 0.06 (0.01;0.10) 10% (0;33) 0.10 (0.05;0.15) 0.13 (0.08;0.17) 12% (4;22) −0.02 (− 0.07;0.02) −0.02 (− 0.06;0.03) 1% (0;12)
Season (winter/ summer) −0.04 (− 0.08;0.01) −0.04 (− 0.08;0.00) 3% (0;16) 0.01 (− 0.04;0.05) − 0.01 (− 0.05;0.04) 0% (0;11) 0.03 (− 0.02;0.07) 0.02 (− 0.02;0.07) 1% (0;4) 0.03 (− 0.01;0.07) 0.03 (− 0.01;0.08) 4% (0;16)
Special day (y/n) 0.00 (− 0.06;0.06) 0.03 (− 0.03;0.09) 0% (− 1;10) 0.04 (0.00;0.09) 0.05 (0.00;0.010) 10% (0;34) 0.07 (0.02;0.12) 0.11 (0.06;0.16) 7% (1;16) 0.06 (0.01;0.10) 0.09 (0.04;0.13) 16% (1;38)
Prior interval (hours) −0.02 (− 0.08;0.04) − 0.01 (− 0.07;0.05) 1% (0;12) 0.04 (0.00;0.08) 0.05 (0.01;0.09) 10% (0;34) 0.15 (0.11;0.120) 0.19 (0.14;0.23) 27% (15;40) 0.07 (0.02;0.11) 0.08 (0.04;0.12) 17% (3;36)
Place of meal (ref: home)
 Work −0.14 (− 0.24;-0.04) − 0.14 (− 0.25;-0.04) 45% (4;73) −0.12 (− 0.19;-0.04) −0.12 (− 0.19;-0.04) 60% (10;85) −0.19 (− 0.25;-0.13) −0.24 (− 0.30;-0.18) 43% (24;60) − 0.07 (− 0.14;-0.00) −0.08 (− 0.15;-0.01) 18% (0;48)
 Restaurant 0.11 (0.06;0.15) 0.11 (0.07;0.15) 27% (8;54) 0.02 (− 0.03;0.07) 0.05 (0.00;0.09) 4% (1;29) 0.02 (−0.03;0.07) 0.04 (−0.01;0.09) 1% (0;5) 0.11 (0.06;0.15) 0.12 (0.08;0.16) 43% (17;64)
 Other 0.01 (−0.06;0.07) 0.01 (− 0.06;0.07) 0% (0;13) −0.05 (− 0.10;0.00) −0.03 (− 0.08;0.02) 6% (0;31) 0.08 (0.03;0.13) 0.13 (0.08;0.18) 10% (3;20) 0.01 (− 0.05;0.07) 0.02 (− 0.04;0.08) 1% (0;17)
R-squared (95%CI) 0.04 (0.03;0.09) 0.02 (0.01;0.05) 0.11 (0.08;0.14) 0.03 (0.02;0.05)
Participant-level covariates
BMI (kg/m2) −0.08 (− 0.18;0.00) −0.07 (− 0.16;0.02) 3% (0;14) − 0.07 (− 0.21;0.06) −0.04 (− 0.19;0.10) 1% (0;12) − 0.03 (− 0.17;0.08) − 0.04 (− 0.18;0.07) 2% (0;24) 0.08 (− 0.02;0.17) 0.09 (− 0.01;0.18) 2% (0;9)
Age (years) 0.15 (0.02;0.26) 0.21 (0.13;0.30) 17% (2;33) 0.12 (− 0.07;0.30) 0.28 (0.13;0.43) 12% (−4;33) − 0.01 (− 0.18;0.18) 0.04 (− 0.09;0.17) 0% (− 7;24) − 0.08 (− 0.22;0.07) −0.03 (− 0.13;0.09) 1% (− 1;8)
Sex (M/W) − 0.34 (− 0.43;-0.25) −0.34 (− 0.41;-0.26) 64% (39;80) −0.46 (− 0.65;-0.31) −0.40 (− 0.56;-0.27) 66% (34;82) − 0.26 (− 0.39;-0.14) − 0.21 (− 0.31;-0.10) 76% (17;86) −0.51 (− 0.58;-0.43) −0.50 (− 0.57;-0.44) 90% (72;95)
Education level (ref. current/no training)
 Technical college −0.01 (− 0.11;0.09) −0.07 (− 0.15;0.02) 0% (− 1;8) − 0.03 (− 0.17;0.09) −0.04 (− 0.17;0.08) 1% (− 1;8) 0.03 (− 0.10;0.15) − 0.01 (− 0.13;0.10) 0% (− 2;16) − 0.04 (− 0.15;0.07) − 0.15 (− 0.25;-0.05) 2% (− 2;12)
 University − 0.01 (− 0.11;0.08) 0.06 (− 0.02;0.14) 0% (− 2;6) − 0.10 (− 0.25;0.03) −0.02 (− 0.16;0.11) 1% (− 3;10) −0.02 (− 0.15;0.13) 0.02 (− 0.10;0.14) 0% (− 2;18) 0.03 (− 0.07;0.14) 0.15 (0.06;0.26) 2% (− 2;11)
Occupation (ref. no job/ retired)e
 Full time 0.02 (− 0.11;0.16) − 0.06 (− 0.16;0.03) 0% (− 3;8) −0.09 (− 0.30;0.10) − 0.19 (− 0.38;-0.02) 6% (−3;28) 0.01 (− 0.17;0.22) 0.01 (− 0.13;0.15) 0% (− 4;26) 0.02 (− 0.12;0.15) 0.08 (− 0.02;0.18) 1% (− 2;8)
 Part time/hourly − 0.06 (− 0.16;0.03) − 0.14 (− 0.24;-0.04) 5% (− 1;18) − 0.00 (− 0.17;0.16) −0.08 (− 0.23;0.07) 0% (− 1;12) −0.01 (− 0.13;0.10) −0.05 (− 0.17;0.06) 1% (− 2;20) 0.09 (− 0.01;0.19) 0.03 (− 0.07;0.12) 1% (− 1;7)
Physical activity (h/week) 0.04 (− 0.04;0.12) 0.04 (− 0.03;0.12) 1% (0;7) 0.14 (0.00;0.28) 0.15 (0.02;0.27) 7% (0;19) 0.05 (− 0.05;0.15) 0.02 (− 0.08;0.13) 2% (− 1;17) 0.07 (− 0.02;0.16) −0.03 (− 0.13;0.05) 0% (− 2;3)
Smoking status (ref. never smoker)
 Current smoker 0.25 (0.08;0.42) 0.04 (−0.04;0.12) 5% (−4;19) 0.23 (−0.00;0.48) 0.05 (− 0.08;0.16) 4% (− 4;20) 0.20 (− 0.04;0.42) 0.09 (− 0.03;0.21) 25% (− 3;62) 0.05 (− 0.13;0.24) −0.17 (− 0.27;-0.07) 0% (− 11;9)
 Former smoker 0.18 (0.01;0.35) 0.06 (− 0.03;0.14) 6% (− 1;20) 0.12 (− 0.12;0.38) 0.03 (− 0.09;0.16) 1% (− 2;15) 0.04 (− 0.18;0.25) −0.05 (− 0.17;0.07) 0% (− 12;22) 0.08 (− 0.10;0.27) 0.18 (0.08;0.28) 5% (−4;20)
R-squared (95%CI) 0.18 (0.13;0.26) 0.28 (0.18;0.54) 0.07 (0.05;0.19) 0.28 (0.23;0.39)
  1. aPratt Index, in % contribution to the variance explained by the model (R2). Might not add up to 100% due to rounding errors from parameter estimates
  2. bfor dichotomous variables, the information shown is for the underlined category (reference category not underlined)
  3. call 95% confidence intervals (95%CI) – for beta-weights, correlations, r-squared, and Pratt Index – are bootstrap confidence intervals based on 1000 samples
  4. dbold numbers indicate covariates accounting for > 10% of the explained variance
  5. efull time: > 35 h/week; part time/hourly: < 35 h/week