Table 3.

Timing of introduction of infant formula and complementary foods during the first 12 months by maternal education, All Babies in Southeast Sweden (ABIS) study (n 9727)

	Median time of introduction (weeks)*
Food or food group	Low maternal education	25th–75th percentile	Intermediate maternal education	25th–75th percentile	High maternal education	25th–75th percentile	P value
Infant formula	6·1	1·7–13·6	7·6	1·1–16·9	6·9	0·4–17·6	0·38
Potatoes	19·0	17·1–23·3	18·7	17·4–22·0	19·0	17·6–22·0	0·002
Vegetables	19·9	17·4–24·7	19·4	17·7–23·0	19·6	18·0–22·9	0·06
Fruits and berries	20·7†	17·8–25·1	21·3§	18·6–24·9	21·6	19·3–24·9	<0·001
Porridge	21·4	18·1–26·1	21·7	18·4–25·9	21·6	18·7–25·7	0·45
Meat	24·0	21·5–29·0	23·7§	21·7–27·0	24·4	22·1–27·3	<0·001
Milk	25·1†,‡	21·6–28·9	26·0§	22·7–29·7	26·7	23·9–30·7	<0·001
Follow-on formula	25·7†,‡	20·7–29·4	26·3§	24·3–30·3	27·1	25·4–31·9	<0·001
Sour milk and yoghurt	27·0	22·9–31·6	27·1§	24·1–31·6	27·7	24·9–31·7	<0·001
Bread	27·4	23·0–33·6	28·4	24·0–33·6	27·7	23·6–33·0	0·02
Fish	29·3†,‡	24·1–35·9	30·6§	25·6–37·6	32·1	26·7–39·3	<0·001
Rice	31·6†,‡	25·4–35·4	33·0	27·7–36·1	33·6	28·3–36·7	<0·001
Pasta	32·6†,‡	26·6–35·4	33·7§	29·4–36·3	34·4	30·7–37·1	<0·001
Cheese	33·7†	27·9–39·1	34·9§	29·9–40·1	35·4	30·9–40·6	<0·001
Sugar-containing foods	31·6†,‡	22·6–40·7	35·7§	27·7–42·4	37·7	30·8–44·1	<0·001
Eggs	37·7	30·5–44·1	38·7	32·6–44·9	38·9	33·1–44·7	0·02

^*Based on those introduced to the respective foods or food groups during the first year.

^†Significant difference between low and high maternal education.

^‡Significant difference between low and intermediate maternal education.

^§Significant difference between intermediate and high maternal education.