Table 1.

Differences between longitudinal cohort and those lost to follow-up—categorical participant demographic characteristics

Child characteristics	Control				Intervention				Total
	Follow-up n = 79		Lost to follow-up n = 9		Follow-up n = 77		Lost to follow-up n = 19		Follow-up n = 156		Lost to follow-up n = 28
	n	%	n	%	n	%	n	%	n	%	n	%
Sex
Female	48	61	5	56	36	47	10	56	84	54	15	54
Male	31	39	4	44	41	53	9	44	72	46	13	44
Mean age (±SD)	7.5 ± 1.6		8 ± 1.9		7.6 ± 1.6		7.4 ± 1.6		7.6 ± 1.6		7.6 ± 1.7
5–6	20	25	2	22	22	29	5	29	42	27	7	26
7–8	32	41	3	33	25	32	6	32	57	37	8	30
9–10	27	34	4	44	30	39	8	42	57	37	12	44
BMI z-score [31]
Mean z-score (±SD)	0.73 ± 0.90		1.00 ± 0.74		0.69 ± 0.81		0.94 ± 0.91		0.71 ± 0.71		0.97 ± 0.84
Normal weight	56	71	5	56	57	74	10	53	113	72	15	54
Overweight	13	16	4	44	15	19	5	26	28	18	9	32
Obese	10	13	0	0	5	6	4	21	15	10	4	14
Ethnicitya
NZ Mori	15	19	4	44	18	23	5	26	33	21	9	32
Pacific	4	5	0	0	5	6	1	5	9	6	1	4
NZEO/Other	63	80	5	56	59	77	13	68	122	78	18	64
Missing	6	8	0	0	7	9	4	21	13	8	4	14

^aParticipants could select more than one category so percentages may add up to more than 100