Table 1

The risk of obesity risk traits1in 2181 infants
UK-WHO charts UK90 reference charts Relative Risk (95% Confidence Interval)
Overweight (%)
1 month 2.2 2.5 0.889 (0.605, 1.305)
2 months 1.7 2.8 0.607* (0.405, 0.909)
3 months 2.4 3.2 0.768 (0.540, 1.093)
4 months 3.3 3.4 0.959 (0.697, 1.321)
5 months 3.9 3.5 1.132 (0.836, 1.532)
6 months 4.9 3.4 1.427* (1.068, 1.905)
7 months 6.7 4.0 1.670* (1.291, 2.161)
8 months 9.0 4.9 1.849* (1.471, 2.324)
9 months 11.5 6.0 1.931* (1.576, 2.366)
10 months 14.2 7.3 1.938* (1.616, 2.323)
11 months 17.2 9.0 1.909* (1.623, 2.244)
12 months 21.0 10.9 1.929* (1.668, 2.229)
24 months (n = 751) 24.6 11.5 2.151* (1.701, 2.721)
Obesity (%)
1 month 0·3 0·4 0·750 (0·261, 2·158)
2 months 0·1 0·3 0·500 (0·125, 1·997)
3 months 0·2 0·2 1·000 (0·250, 3·993)
4 months 0·2 0·2 0·800 (0·215, 2·975)
5 months 0·5 0·3 1·429 (0·545, 3·746)
6 months 1·0 0·6 1·750 (0·863, 3·548)
7 months 1·2 0·8 1·500 (0·829, 2·715)
8 months 1·9 1·0 1·952* (1·158, 3·292)
9 months 2·8 1·5 1·875* (1·226, 2·868)
10 months 4·2 2·0 2·140* (1·497, 3·058)
11 months 6·0 2·7 2·241* (1·654, 3·037)
12 months 7·9 3·5 2·263* (1·739, 2·945)
24 months (n = 751) 9·2 4·4 2·091* (1·398, 3·126)
Weight gain, 0–12 months
Rapid (%) 50.0 38.9 1.257* (1.181, 1.337)
Extremely (%) rapid 27.5 20.7 1.214* (1.124, 1.311)
BMI gain, 1–12 months
Rapid (%) 55.2 36.5 1.470* (1.380, 1.567)
Extremely rapid (%) 32.6 19.8 1.440* (1.328, 1.561)

*significant at p < 0.05.

1Overweight, BMI > 1.34 Z-scores = 91st centile; obesity, BMI > 2.05 Z-scores = 98th centile; rapid weight or BMI gain, gain > 0.67 Z-scores = one centile band; extremely rapid weight or BMI gain, gain > 1.34 Z-scores = two centile bands.

Johnson et al.

Johnson et al. BMC Pediatrics 2012 12:104   doi:10.1186/1471-2431-12-104

Open Data