, Moon-Kyung Shin1,2
1Department of Preventive Medicine, Hanyang University College of Medicine, Seoul, Korea
2Institute for Health and Society, Hanyang University, Seoul, Korea
Copyright © 2023 The Korean Society for Preventive Medicine
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (https://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
| Food items | Food groups | Vegetables & traditional | Fish & carbohydrates | Sweet & fat |
|---|---|---|---|---|
| White rice | White rice | 0.214 | 0.322 | 0.383 |
| Glutinous rice, black rice, brown rice, barley, foxtail millet, millet, sorghum | Grains | 0.411 | −0.194 | 0.044 |
| Rice cakes, noodles, dumplings, ramyun | Noodles and dumplings | −0.048 | 0.217 | −0.151 |
| Wheat flours, bread, cake | Flours and bread | 0.133 | −0.115 | −0.263 |
| Cereals, snacks, cookies, biscuits | Cereals and snacks | −0.209 | 0.144 | 0.313 |
| Potatoes, sweet potatoes | Potatoes | 0.301 | 0.068 | −0.077 |
| Sugar, starch syrup, honey, candy, jelly, jam | Sweets | 0.007 | −0.164 | 0.356 |
| Tofu, black bean, red bean, kidney bean, soybean, green bean, soy milk | Legumes | 0.233 | −0.087 | 0.166 |
| Sesame, chestnuts, almonds, perilla seeds, walnuts, peanuts | Nuts and seeds | 0.194 | 0.155 | −0.077 |
| Garlic, green onion, tomato juice, carrots, pumpkin, radishes, peppers, cucumbers, ginger, bean sprouts, cabbage | Vegetables | 0.627 | 0.160 | 0.098 |
| Kimchi, pickled vegetables | Kimchi | 0.309 | −0.113 | 0.315 |
| Mushrooms | Mushrooms | 0.542 | 0.085 | −0.232 |
| Apples, tangerines, bananas, pears, watermelon, strawberries, oranges, grapes, persimmons | Fruits | 0.154 | 0.104 | 0.324 |
| Pork, beef, poultry, ham, sausages | Meat and meat products | 0.429 | −0.172 | 0.250 |
| Eggs | Eggs | −0.013 | 0.199 | 0.145 |
| Anchovies, fish paste, squid, canned tuna, mussels, shrimp, mackerel | Fish and shellfish | 0.174 | 0.782 | 0.038 |
| Sea mustard, dried laver, brown seaweed | Seaweeds | 0.076 | 0.728 | 0.083 |
| Milk, yogurt, cheese, ice cream | Milk and dairy products | −0.020 | 0.043 | −0.579 |
| Oils, butter, margarine | Oils | 0.560 | 0.185 | −0.052 |
| Sweetened beverages, barley tea, carbonated beverages | Beverages | −0.076 | 0.016 | 0.358 |
| Salt, soy sauce, pepper powder, pepper, red pepper paste, soybean paste, tomato ketchup, vinegar | Seasonings | 0.278 | 0.215 | 0.003 |
| Eigenvalue | 2.19 | 1.37 | 1.28 | |
| Explained variance (%) | 10.4 | 6.6 | 6.1 | |
| Cumulative variance (%) | 10.6 | 17.0 | 23.1 |
| Characteristics | Total (n=802) | Exclusive breastfeeding (n=211) | Breast and formula feeding (n=515) | Exclusive formula feeding (n=76) | p-value |
|---|---|---|---|---|---|
| Child’s characteristics | |||||
| Sex | |||||
| Male | 427 (53.5) | 99 (46.8) | 289 (56.2) | 39 (53.3) | 0.10 |
| Female | 375 (46.5) | 112 (53.2) | 226 (43.8) | 37 (46.7) | |
| Type of care | |||||
| Child care center | 686 (85.5) | 172 (81.0) | 452 (87.9) | 62 (81.6) | 0.08 |
| Home | 109 (14.5) | 39 (19.0) | 57 (12.1) | 13 (18.4) | |
| Age (mo) | 35.8±0.3 | 36.6±0.5 | 35.6±0.3 | 35.3±0.9 | 0.27 |
| Birth weight (kg) | 3.3±0.0 | 3.3±0.0 | 3.3±0.0 | 3.2±0.1 | 0.28 |
| Body mass index (kg/m2) | 15.9±0.1 | 15.8±0.1 | 15.8±0.0 | 16.2±0.2 | 0.09 |
| Normal | 669 (84.0) | 183 (86.6) | 427 (84.0) | 59 (76.3) | 0.19 |
| Overweight | 133 (16.0) | 28 (13.4) | 88 (16.0) | 17 (23.7) | |
| Total energy (kcal/day) | 1236.0±16.0 | 1262.2±34.6 | 1224.6±19.3 | 1243.9±59.1 | 0.63 |
|
| |||||
| Father’s characteristics | |||||
| Monthly household income (Korean won) | |||||
| <4 000 000 | 263 (49.8) | 75 (52.5) | 164 (47.7) | 24 (58.9) | 0.37 |
| ≥4 000 000 | 272 (50.2) | 73 (47.5) | 180 (52.3) | 19 (41.1) | |
| Age (y) | 36.7±0.2 | 37.1±0.4 | 36.5±0.3 | 37.2±0.8 | 0.28 |
| Body mass index (kg/m2) | 25.3±0.2 | 25.3±0.4 | 25.4±0.2 | 24.3±0.5 | 0.13 |
|
| |||||
| Mother’s characteristics | |||||
| Monthly household income (Korean won) | |||||
| <4 000 000 | 318 (51.4) | 89 (54.6) | 197 (48.9) | 32 (61.7) | 0.19 |
| ≥4 000 000 | 316 (48.6) | 80 (45.4) | 213 (51.1) | 23 (38.3) | |
| Age (y) | 34.1±0.2 | 34.2±0.3 | 34.0±0.2 | 33.6±0.7 | 0.66 |
| Body mass index (kg/m2) | 22.8±0.2 | 22.8±0.4 | 22.6±0.2 | 24.3±1.1 | 0.29 |
| Variables | No. of cases/participants (n=133/802) | Model 1 | p for trend | Model 2 | p for trend |
|---|---|---|---|---|---|
| Feeding type | 0.23 | 0.18 | |||
| Exclusive breastfeeding | 28/211 | 1.00 (reference) | 1.00 (reference) | ||
| Breast and formula feeding | 88/515 | 1.22 (0.72, 2.07) | 1.24 (0.72, 2.11) | ||
| Exclusive formula feeding | 17/76 | 1.96 (0.90, 4.26) | 2.08 (0.95, 4.60) | ||
|
| |||||
| Duration of total breastfeeding (mo) | 0.20 | 0.17 | |||
| 0 | 17/76 | 1.00 (reference) | 1.00 (reference) | ||
| 1–6 | 39/234 | 0.54 (0.27, 1.08) | 0.52 (0.25, 1.07) | ||
| 7–11 | 37/193 | 0.65 (0.32, 1.31) | 0.62 (0.30, 1.27) | ||
| ≥12 | 40/299 | 0.48 (0.24, 0.98) | 0.45 (0.22, 0.94) | ||
|
| |||||
| Duration of total formula feeding (mo) | 0.35 | 0.39 | |||
| 0 | 28/211 | 1.00 (reference) | 1.00 (reference) | ||
| 1–6 | 14/85 | 1.30 (0.59, 2.87) | 1.33 (0.60, 2.93) | ||
| 7–11 | 23/104 | 1.80 (0.93, 3.52) | 1.78 (0.91, 3.49) | ||
| ≥12 | 68/402 | 1.18 (0.68, 2.06) | 1.22 (0.69, 2.13) | ||
|
| |||||
| Duration of exclusive breastfeeding (mo) | 0.40 | 0.35 | |||
| ≤12 | 13/76 | 1.00 (reference) | 1.00 (reference) | ||
| ≥12 | 15/135 | 0.66 (0.25, 1.75) | 0.61 (0.22, 1.72) | ||
|
| |||||
| Age when starting formula feeding (mo) | 0.27 | 0.23 | |||
| 0 | 28/211 | 1.00 (reference) | 1.00 (reference) | ||
| ≤4 | 92/480 | 1.42 (0.83, 2.43) | 1.45 (0.85, 2.50) | ||
| >4 | 13/111 | 0.93 (0.44, 1.98) | 0.93 (0.43, 2.03) | ||
| Variables | Vegetables & traditional | p-value | Fish & carbohydrates | p-value | Sweet & fat | p-value |
|---|---|---|---|---|---|---|
| Feeding type | ||||||
| Exclusive breastfeeding | Reference | Reference | Reference | |||
| Breast and formula feeding | −0.13 (−0.30, 0.03) | 0.10 | −0.05 (−0.25, 0.15) | 0.60 | −0.21 (−0.38, −0.04) | 0.01 |
| Exclusive formula feeding | −0.24 (−0.49, 0.01) | 0.06 | −0.14 (−0.41, 0.14) | 0.34 | 0.01 (−0.29, 0.30) | 0.95 |
|
| ||||||
| Duration of total breastfeeding (mo) | ||||||
| 0 | Reference | Reference | Reference | |||
| 0–6 | 0.09 (−0.16, 0.33) | 0.49 | 0.03 (−0.22, 0.28) | 0.83 | −0.10 (−0.38, 0.19) | 0.50 |
| 7–11 | 0.15 (−0.11, 0.40) | 0.25 | 0.10 (−0.16, 0.35) | 0.44 | −0.30 (−0.61, 0.00) | 0.05 |
| ≥12 | 0.21 (−0.03, 0.45) | 0.09 | 0.18 (−0.08, 0.43) | 0.18 | −0.18 (−0.47, 0.11) | 0.22 |
|
| ||||||
| Duration of total formula feeding (mo) | ||||||
| 0 | Reference | Reference | Reference | |||
| 0–6 | 0.05 (−0.24, 0.35) | 0.72 | 0.00 (−0.40, 0.40) | 0.99 | −0.14 (−0.43, 0.14) | 0.32 |
| 7–11 | 0.01 (−0.20, 0.21) | 0.96 | −0.06 (−0.39, 0.26) | 0.69 | −0.08 (−0.34, 0.19) | 0.58 |
| ≥12 | −0.05 (−0.22, 0.12) | 0.57 | −0.18 (−0.40, 0.04) | 0.10 | −0.18 (−0.37, 0.01) | 0.07 |
|
| ||||||
| Duration of exclusive breastfeeding (mo) | ||||||
| ≤12 | Reference | Reference | Reference | |||
| ≥12 | 0.06 (−0.28, 0.39) | 0.74 | −0.19 (−0.57, 0.18) | 0.31 | −0.01 (−0.29, 0.26) | 0.93 |
|
| ||||||
| Age at the start of formula feeding (mo) | ||||||
| 0 | Reference | Reference | Reference | |||
| ≤4 | −0.18 (−0.34, −0.02) | 0.03 | −0.04 (−0.24, 0.16) | 0.70 | −0.15 (−0.32, 0.02) | 0.09 |
| >4 | −0.03 (−0.25, 0.18) | 0.77 | −0.08 (−0.35, 0.19) | 0.56 | −0.30 (−0.53, −0.08) | 0.01 |
| Variables | Score quartile | ||||
|---|---|---|---|---|---|
|
| |||||
| 1 (lowest) | 2 (moderate) | 3 (moderate to high) | 4 (highest) | p for trend | |
| Vegetables & traditional | |||||
| No. of cases/participants | 38/198 | 34/209 | 38/200 | 23/195 | |
| Model 1 | 1.00 (reference) | 0.73 (0.42, 1.28) | 0.98 (0.55, 1.71) | 0.56 (0.29, 1.07) | 0.23 |
| Model 2 | 1.00 (reference) | 0.69 (0.39, 1.22) | 0.91 (0.49, 1.68) | 0.48 (0.24, 0.95) | 0.10 |
|
| |||||
| Fish & carbohydrates | |||||
| No. of cases/participants | 36/203 | 37/200 | 35/201 | 25/198 | |
| Model 1 | 1.00 (reference) | 1.03 (0.59, 1.78) | 0.95 (0.53, 1.69) | 0.57 (0.31, 1.03) | 0.23 |
| Model 2 | 1.00 (reference) | 1.11 (0.62, 1.97) | 0.99 (0.55, 1.78) | 0.58 (0.32, 1.05) | 0.22 |
|
| |||||
| Sweet & fat | |||||
| No. of cases/participants | 32/197 | 31/199 | 37/201 | 33/205 | |
| Model 1 | 1.00 (reference) | 1.15 (0.62, 2.13) | 1.94 (1.10, 3.42) | 1.15 (0.64, 2.07) | 0.10 |
| Model 2 | 1.00 (reference) | 1.10 (0.57, 2.11) | 1.99 (1.11, 3.58) | 1.09 (0.58, 2.05) | 0.07 |
Factor loadings ≥0.20. Values are correlation coefficients between each food variable and the dietary pattern, derived from factor analysis.
Values are presented as the weighted mean±standard error or the weighted number (%). A generalized linear regression model and the chi-square test were used to assess the significance of the difference in the participant distribution for continuous and categorical variables.
Values are presented as odds ratio (95% confidence interval). Model 1: adjusted for age and sex; Model 2: model 1 with additional adjustment for birth weight (kg), total energy (kcal/day), type of care (care center or home), and parent’s monthly household income (<4 000 000 or ≥4 000 000 Korean won).
Values are presented as beta coefficient (95% confidence interval). Adjusted for age (months), sex (male or female), birth weight (kg), total energy (kcal/day), type of care (care center or home), and parent’s monthly household income (<4 000 000 or ≥4 000 000 Korean won).
Values are presented as odds ratio (95% confidence interval). Model 1: adjusted for age and sex; Model 2: model 1 with additional adjustment for birth weight (kg), total energy (kcal/day), type of care (care center or home), feeding type (exclusive breastfeeding, breast and formula feeding, or exclusive formula feeding), and parent’s monthly household income (<4 000 000 or ≥4 000 000 Korean won).