Table 2.

Multilevel associations between parental-reported and accelerometer-derived physical activity in 2–9-year-old children from seven European countries taking part in the IDEFICS study, September 2007–June 2008

	Null model†		Full model SPORT‡		Full model OPRQ§		Full model OPC||
	(n 5943)		(n 5320)		(n 5147)		(n 4718)
Parameter	σ 2	se	σ 2	se	σ 2	se	σ 2	se
cpm/d
Fixed part
β ¶			14·95**		0·29**		2·93**
se ¶			3·71		0·04		0·48
Random part
Country level	3269·25	1794·11	3006·38	1661·32	2767·65	1525·03	3340·17	1845·99
School level	2100·75	296·09	2295·13	326·96	1665·07	269·14	2293·18	340·50
Child level	21665·55	410·15	21642·40	433·97	20785·18	423·58	21008·96	488·63
LPA (% of time/d)
Fixed part
β ¶			−0·26		0·006**		0·08**
se ¶			0·14		0·001		0·02
Random part
Country level	5·26	2·89	4·82	2·67	5·08	2·80	4·82	2·67
School level	4·42	0·55	4·15	0·55	4·21	0·56	3·55	0·52
Child level	31·76	0·60	31·87	0·64	31·13	0·64	31·51	0·67
MVPA (% of time/d)
Fixed part
β ¶			0·38**		0·005**		0·05**
se ¶			0·07		0·001		0·01
Random part
Country level	0·77	0·42	0·73	0·40	0·66	0·37	0·82	0·46
School level	0·47	0·08	0·51	0·09	0·38	0·08	0·54	0·09
Child level	7·64	0·14	7·59	0·15	7·35	0·15	7·43	0·16

IDEFICS, Identification and Prevention of Dietary and Lifestyle induced Health Effects in Children and Infants; SPORT, sports participation; OPRQ, Outdoor Playtime Recall Questions; OPC, Outdoor Playtime Checklist; σ ², variance; cpm, counts per minute; LPA, light physical activity; MVPA, moderate-to-vigorous physical activity; SES, socio-economic status.

**P<0·001.

^†Only including the covariates (sex, age, SES).

^‡Null model + sports participation as an explanatory variable.

^§Null model + OPRQ-derived outdoor play as an explanatory variable.

^||Null model + OPC-derived outdoor play as an explanatory variable.

^¶Controlled for sex of the child, age and SES (as defined by the highest parental education of both parents).