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Table 4 Mean BMI, weight, TSF, and MUAMC at baseline and at 5 months (follow-up) by group and the intervention effects in female Cambodian garment workersa

From: Impact of lunch provision on anthropometry, hemoglobin, and micronutrient status of female Cambodian garment workers: exploratory randomized controlled trial

 

Group

Intervention effect

Intervention

Control

Mean difference

Cohen’s d

p

BMI, kg/m2

 Baseline

19.8 ± 2.4b

19.9 ± 2.4

 At 5 months, unadjusted

19.9 ± 2.3

19.9 ± 2.4

 At 5 months, adjusted

20.0 (19.8, 20.2)c

19.9 (19.7, 20.0)

0.1 (− 0.1, 0.4)

0.17

0.27

Weight, kg

 Baseline

46.0 ± 6.1

47.4 ± 6.3

 At 5 months, unadjusted

46.4 ± 5.9

47.6 ± 5.9

 At 5 months, adjusted

47.0 (46.7, 47.4)

46.9 (46.5, 47.3)

0.1 (−0.4, 0.7)

0.06

0.64

TSF, mm

 Baseline

15.4 ± 4.5

15.4 ± 4.8

 At 5 months, unadjusted

15.6 ± 4.7

15.2 ± 4.6

 At 5 months, adjusted

15.6 (15.1, 16.0)

15.2 (14.7, 15.7)

0.4 (−0.3, 1.1)

0.18

0.24

MUAMC, cm

 Baseline

19.1 ± 1.4

19.2 ± 1.6

 At 5 months, unadjusted

19.1 ± 1.5

19.3 ± 1.5

 At 5 months, adjusted

19.2 (19.0, 19.3)

19.3 (19.1, 19.4)

−0.1 (−0.3, 0.1)

−0.14

0.35

  1. BMI Body mass index, TSF Triceps skinfold thickness, MUAMC Mid-upper arm muscle circumference
  2. aTotal n = 172 (completed the follow-up, n = 86 intervention and n = 86 control). A general linear model with adjustments for baseline values was used to predict marginal means (95% CIs) for each outcome variable and to estimate intervention effects as corresponding marginal mean differences (95% CIs) including an estimated standardized effect size (Cohen’s d)
  3. bMean ± SD (all such values)
  4. cMarginal mean, 95% CI in parentheses (all such values)