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Table 1 Food or food groups used in the dietary pattern analysis

From: Modern dietary pattern is prospectively associated with earlier age at menarche: data from the CHNS 1997–2015

Food or food groups

Food items

Cereals

Rice, noodle, steamed bun, corn, barley, millet, brown rice, black rice

Tubers and starches

Potato, sweet potato, cassava, konjac powder, vermicelli

Legumes and its products

Dried legumes, tofu, soya-bean milk, dried bean curd, mung bean, red bean

Vegetables

Root vegetable, leguminous vegetable and sprout, cucurbitaceous and solanaceous vegetable, steam, leafy and flowering vegetable, aquatic vegetable

Fungi and algae

Mushroom, agaric, tremella, laver, sea-tangle

Fruits

Kernel fruit, drupe fruit, berry, orange fruit, tropic fruit, melons

Nuts

Walnut, melon seeds, cashew, hazelnut, almond, pistachio

Meat and its products

Pork, beef, mutton, rabbit meat, processed pork, sausage

Poultry and its products

Chicken, duck, goose, turkey, pigeon

Dairy products

Milk, dried milk, yoghurt, cheese

Eggs

Chicken egg, duck egg, goose egg, partridge egg

Fish and shellfish

Fish, shrimp, crab, shellfish

Ethnic foods and cakes

Pancake, tangyuan, spring rolls, mooncake, tea-oil tree, mung bean cake

Fast foods

Hamburger, sandwich, hotdog, chips, instant noodles, bread, biscuit, snacks

Beverages

Carbonated drink, fruit juice, vegetable juice, milk drink, vegetable protein drink, tea drink, powdered drink, popsicle and ice cream

Sugar and preserves

Lollipops, hard candy, chocolate, filled candy, honey, preserved fruit

Fats and oils

Animal fat, vegetable oils

Condiments

Sauce, vinegar, catsup, fermented soybean curd, pickles, spice, salt