Journal List > Korean J Community Nutr > v.17(1) > 1038344

Lee, Shim, and Yoon: Change of Children's Meal Structure in Terms of Temporal and Spatial Dimensions : Analysis of the Data from the Korea National Health and Nutrition Examination Surveys of 1998 and 2009

Abstract

This study was conducted to characterize changes in the meal structure of Korean children in terms of temporal and spatial dimensions. The data of 1,891 and 1,627 school-aged children and adolescents extracted respectively from the 1998 and 2009 Korea National Health and Nutrition Examination Surveys were analyzed by gender, age group, and residential area. From 1998 to 2009, the total eating events increased from 4.3 to 4.6 (p=0.001); the average number of meal intake decreased from 2.8 to 2.7 (p<0.001) while that of snack intake increased from 1.5 to 1.9 (p<0.001). The prevalence of “3 meals a day” pattern tended to decrease while that of “2 meals a day” pattern increased over the years. Especially, the “2 meals a day” pattern with “lunch+dinner” increased from 13% in 1998 to 20% in 2009. The percentage of eating breakfast or dinner at home decreased over the years. These results indicate that over the last decade, “destructuration” occurred in Korean children's meal structure in terms of temporal and spatial dimensions. Especially, such alteration was more distinctive in male than female and in the high school-aged group than the elementary or middle school-aged groups. Overall, the difference of meal structure between genders and residential areas became smaller while the difference among age groups became larger over the years. (Korean J Community Nutr 17(1): 109~118, 2012)

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Table 1.
General characteristics of the subjects1)
Characteristics 1998 (n = 1,891) 2009 (n = 1,627) Total (n = 3,518) p-value2
      %    
Gender Male 52.0 53.1 52.5 0.551
Female 48.0 46.9 47.5
Age group Elementary school-aged 46.1 44.9 45.5 0.004
Middle school-aged 23.9 29.7 26.8
High school-aged 30.0 25.5 27.7
Residential area Rural area 20.7 15.1 17.8 0.140
Urban area 79.3 84.9 82.2
      Mean ± SE    
Family size   4.27 ± 0.03 554.23 ± 50.035 554.25 ± 50.02 0.460
House hold income (10,000 won/month)   158.98 ± 5.32 372.97 ± 36.17 267.08 ± 19.21 < 0.001

1) Weights for nutrition surveys were applied for all estimates.

2) by chi-square test or t-test

Table 2.
Average numbers of eating events in 1998 and in 20091)
Gender Age group Residential area
Classification Male Female Elementary school-aged Middle school-aged High school-aged Rural Urban Total
1998 2009 1998 2009 1998 2009 1998 2009 1998 2009 1998 2009 1998 2009 1998 2009
(n=984) (n=839) (n=907) (n=788) (n=911) (n=889) (n=448) (n=425) (n=532) (n=313) (n=610) (n=261) (n=1,281) (n=1,366) (n=1,891) (n=1,627)
Mean±SE
Total 4.36 ± 0.06 4.61 ± 0.06 4.27 ± 0.06 4.50 ± 0.07 4.51 ± 0.07 7 4.83 ± 0.06 4.24 ± 0.07 4.37 ± 0.09 4.07 ± 0.07 4 4.29 ± 0.09 4.13 ± 0.09 4.58 ± 0.12 4.36 ± 0.06 4.56 ± 0.06 4.31 ± 0.05 4.56 ± 0.05
p-value2) < 0.004 < 0.012 < 0.001 < 0.225 < 0.060 < 0.004 < 0.025 < 0.001
Meal 2.81 ± 0.02 2.67 ± 0.02 2.74 ± 0.02 2.65 ± 0.02 2.86 ± 0.02 2 2.80 ± 0.02 2.76 ± 0.02 2.60 ± 0.03 2.65 ± 0.03 2 2.47 ± 0.04 2.72 ± 0.03 2.64 ± 0.05 2.79 ± 0.02 2.66 ± 0.02 2.77 ± 0.01 2.66 ± 0.02
p-value2) < 0.001 < 0.004 < 0.012 < 0.001 < 0.001 < 0.141 < 0.001 < 0.001
Snack 1.55 ± 0.06 1.94 ± 0.06 1.53 ± 0.06 1.85 ± 0.06 1.65 ± 0.07 7 2.03 ± 0.06 1.47 ± 0.07 1.77 ± 0.08 1.42 ± 0.07 1 1.82 ± 0.08 1.40 ± 0.09 1.94 ± 0.11 1.58 ± 0.06 1.89 ± 0.05 1.54 ± 0.05 1.90 ± 0.05
p-value2) < 0.001 < 0.001 < 0.001 < 0.004 < 0.001 < 0.001 < 0.001 < 0.001

1) Weights for nutrition surveys were applied for all estimates

2) by t-test

Fig. 1.
Distribution of number of meals in 1998 and in 20091).
kjcn-17-109f1.tif
Table 3.
Distribution of meal pattern in 1998 and in 20091)
Gender Age group Residential Area
Meal2) Male Female Elementary school-aged Middle school-aged High school-aged Rural Urban Total
pattern 1998 2009 1998 2009 1998 2009 1998 2009 1998 2009 1998 2009 1998 2009 1998 2009
  (n = 984) (n = 839) (n = 907) (n = 788) (n = 911) (n = 889) (n = 448) (n = 425) (n = 532) (n = 313) (n = 610) (n = 261) (n = 1,281) (n = 1,366) (n = 1,891) (n = 1,627)
                  %              
B + L + D 80.1 69.8 75.7 67.4 85.6 80.6 76.8 63.7 67.2 53.5 74.1 66.7 79.0 69.1 78.0 68.7
B + L 3.5 2.9 4.2 5.5 2.9 3.0 3.0 3.6 5.9 6.6 4.2 3.1 3.7 4.3 3.8 4.1
B + D 3.5 3.1 4.0 5.8 2.6 3.8 4.2 4.8 5.3 5.0 6.6 4.7 3.0 4.3 3.8 4.4
L + D 11.8 21.1 13.1 18.4 7.7 11.9 14.1 24.2 18.4 28.7 12.8 22.7 12.4 19.3 12.5 19.8
Others 1.0 3.0 3.0 2.8 1.2 0.6 1.9 3.6 3.2 6.3 2.3 2.8 1.9 3.0 2.0 2.9
p-value3) < 0.001 0.026 0.052 0.005 0.002 0.062 < 0.001 < 0.001

1) Weights for nutrition surveys were applied for all estimates, 2) B: Breakfast, L: Lunch, D: Dinner, Others: ≤ 1 meal, 3) by chi-square test

Table 4.
Distribution of eating place in 1998 and in 20091)
Gender Age group Residential Area
Location Male Female Elementary school-aged Middle school-aged High school-aged Rural Urban Total
  1998 2009 1998 2009 1998 2009 1998 2009 1998 2009 1998 2009 1998 2009 1998 2009
  (n = 984) (n = 839) (n = 907) (n = 788) (n = 911) (n = 889) (n = 448) (n = 425) (n = 532) (n = 313) (n = 610) (n = 261) (n = 1,281) ) (n = 1,366) (n = 1,891) (n = 1,627)
Breakfast %
Skipped 12.7 23.8 15.4 21.0 8.7 12.5 15.7 27.4 20.8 34.2 14.7 24.7 13.8 22.1 14.0 22.5
Home2) 85.0 74.0 83.1 76.6 90.5 86.7 82.2 71.1 75.7 59.8 83.1 71.9 84.3 75.8 84.1 75.2
Away from home3) 2.3 2.3 1.5 2.4 0.8 0.8 2.1 1.5 3.5 6.0 2.2 3.5 1.8 2.1 1.9 2.3
p-value4) < 0.001 0.025 0.070 0.001 < 0.001 0.048 < 0.001 < 0.001
Lunch
Skipped 4.1 4.6 5.9 7.5 3.6 4.0 4.9 6.3 7.2 9.2 7.7 6.5 4.3 5.9 5.0 6.0
Home2) 32.0 34.2 24.8 34.0 25.9 30.9 26.5 36.1 34.3 37.3 28.5 32.8 28.6 34.3 28.6 34.1
Away from home3) 63.9 61.2 69.2 58.5 70.5 65.1 68.5 57.6 58.5 53.5 63.8 60.7 67.2 59.8 66.5 59.9
p-value4) < 0.082 0.005 0.299 0.056 < 0.416 0.630 < 0.066 < 0.079
Dinner
Skipped 4.1 4.8 6.2 6.9 3.4 3.5 4.5 6.1 8.2 9.4 5.8 4.9 4.9 5.9 5.1 5.8
Home2) 87.7 77.9 81.6 79.3 92.7 86.9 85.6 78.9 72.0 63.4 86.1 79.6 84.5 78.4 84.8 78.6
Away from home3) 8.2 17.3 12.2 13.8 3.9 9.6 9.9 14.9 19.8 27.2 8.1 15.5 10.6 15.7 10.1 15.7
p-value4) < 0.001 0.604 0.001 0.102 < 0.061 0.008 < 0.006 < 0.001

1) Weights for nutrition surveys were applied for all estimates

2) Includes home, neighbors’ houses, and relatives’ houses

3) Includes institutions (including schools), restaurants, snack bars, convenience stores, bakeries, ect.

4) by chi-square test

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