8. Using the IROC checklist

Now you try to use the IROC checklist to calculate this baby's risk of becoming an overweight child.

Baby boy B had a birth weight of 3.1kgs (30th percentile) and was bottle fed from birth
His mother’s pre-pregnancy BMI was 32 and she smoked during pregnancy
His father’s BMI was 23
At 4 months Baby B’s weight is 7.5kgs (75th percentile)

Click on the relevant UK-WHO chart to check whether his weight for age has increased by more than 2 centiles.

Risk Factors	Risk Category	Risk Score
Infant gender	Male	2
Infant birthweight	2.93 to < 3.24kgs (6llbs 7oz to <7lbs 2oz)	1
	3.24 to < 3.49 (7llbs 2oz to <7lbs 11oz)	2
	3.49 to < 3.81 (7llbs 11oz to <8lbs 6oz)	3
	>3.81 (>8llbs 6oz)	4
Maternal BMI	18.5 to < 25	1
	25 to < 30	6
	> 30	9
Paternal BMI	18.5 to < 25 or unknown	1
	25 to < 30	6
	> 30	9
Infant weight gain in first year	Weight for age moves up by more than 1 centile on the UK-WHO Growth Chart*	19
Mum smoked during pregnancy	Yes	4
Infant was never breastfed	Yes	3

Your combined checklist scores: 0

Overall IROC Checklist total is:

How would you rate this baby's risk of becoming an overweight child. Please select an option?

Have another look. Baby B has a total risk score of 39 which puts him just into the high risk category.

Risk Score	Risk Category	of 100 infants how many are likely to be overweight as a child if they have this score.
0-15	Low	4-11
16-19	Moderately Low	12-14
20-24	Medium	15-19
25-37	Moderately High	20-37
38-59	High	38-74

High risk - Well done! Baby B has a risk score of 39 which put him just into the high risk category.

Risk Score	Risk Category	of 100 infants how many are likely to be overweight as a child if they have this score.
0-15	Low	4-11
16-19	Moderately Low	12-14
20-24	Medium	15-19
25-37	Moderately High	20-37
38-59	High	38-74