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. 2025 Jun 18;133(6):067018. doi: 10.1289/EHP15534

Table 4.

Daily diet-related greenhouse gas emission (dGHGE) by some characteristics of the seventh Korea National Health and Nutrition Examination Survey (2016–2018) (n=21,271).

Number Percentage Daily dGHGE (kgCO2eq/day)
Meana (SE) Median (minimum, maximum)
Total population 21,271 5.08 0.04 4.11 (0.02, 53.92)
Sex
 Men 9,440 44.38 5.97 A 0.07 4.89 (0.11, 59.92)
 Women 11,831 55.62 4.19 B 0.04 3.50 (0.02, 40.17)
Age groups
 1–18 years 4,417 20.77 4.27 A 0.07 3.49 (0.14, 40.96)
 19–29 1,958 9.21 5.88 BC 0.13 4.74 (0.10, 49.24)
 30–39 2,673 12.57 6.26 B 0.13 5.09 (0.11, 53.92)
 40–49 3,089 14.52 5.78 C 0.11 4.73 (0.08, 46.98)
 50–59 3,108 14.61 4.94 D 0.07 4.18 (0.11, 39.54)
 60–69 2,952 13.88 4.31 A 0.08 3.60 (0.05, 45.70)
 70 or older 3,074 14.45 3.41 E 0.07 2.66 (0.02, 49.37)
Regionb
 Big city 9,193 43.22 5.09 A 0.07 4.14 (0.05, 49.24)
 Medium-sized city 8,178 38.45 5.23 A 0.09 4.20 (0.10, 53.92)
 Rural area 3,900 18.33 4.66 B 0.12 3.74 (0.02, 43.97)
Household Income levelc
 Low 3,373 15.86 3.86 A 0.11 2.98 (0.02, 53.92)
 Middle-low 4,021 18.90 4.55 B 0.09 3.69 (0.05, 43.97)
 Middle 4,529 21.29 5.13 C 0.10 4.15 (0.08, 49.37)
 Middle-high 4,690 22.05 5.39 D 0.11 4.37 (0.11, 50.64)
 High 4,604 21.64 5.81 E 0.11 4.77 (0.10, 45.70)
Education leveld
 Elementary school or under 3,300 15.51 3.42 A 0.06 2.75 (0.05, 39.95)
 Middle school 1,547 7.27 4.33 B 0.11 3.52 (0.16, 31.19)
 High school 4,808 22.60 5.38 C 0.08 4.38 (0.07, 49.24)
 College or above 5,646 26.54 5.96 D 0.08 4.95 (0.11, 50.64)

Note: 54 missing in income level; 1,553 missing in education level. —, no data.

a

p-difference was marked as letters, which were determined using a general linear model (Tukey’s multiple comparison).

b

Region was classified as big cities (urban neighborhoods in metropolitan municipalities with 1 million population), medium-sized cities (urban areas in nonmetropolitan provinces), and rural areas (towns and townships in counties or rural parts of mixed cities).

c

Household income categories are based on equalized household income, calculated as the monthly household income divided by the square root of the number of household members. Participants are then classified into income quintiles.

d

Reanalyzed only for adults who could use an individual’s final educational background.