Table 1.

Transition matrices for girls and boys across weight categories in each status over 3‐month interval intervals by sex

	Start weight status	End weight status
		Girls			Boys
		Normal	Raised	High	Normal	Raised	High
0–3 m	Normal	0.94	0.05	0.01	0.92	0.08	0.01
	Raised	0.74	0.25	0.01	0.67	0.28	0.04
	High	0.54	0.36	0.09	0.49	0.38	0.13
3–6 m	Normal	0.86	0.13	0.01	0.86	0.12	0.01
	Raised	0.13	0.75	0.13	0.14	0.71	0.16
	High	0.01	0.10	0.89	0.01	0.09	0.90
6–9 m	Normal	0.91	0.08	0.01	0.89	0.11	0.01
	Raised	0.14	0.77	0.08	0.18	0.70	0.13
	High	0.02	0.21	0.77	0.02	0.16	0.82
9–12 m	Normal	0.91	0.09	<0.01	0.90	0.10	0.01
	Raised	0.19	0.74	0.07	0.19	0.73	0.09
	High	0.04	0.28	0.68	0.03	0.25	0.72

Values are probabilities, adding to 1 in each row. Each cell indicates the probability of a child starting in that row category and ending in that column category 3 months later.