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Table 1 Baseline measurement: Distribution of pupils of which data at all three levels are available (IG: intervention group, CG: control group)

From: Evaluation of a health promotion program in children: Study protocol and design of the cluster-randomized Baden-Württemberg primary school study [DRKS-ID: DRKS00000494]

grade group n (%) % of boys
1 IG 411 (53.4%) 50.1%
  CG 358 (46.6%) 50.6%
2 IG 382 (55.5%) 45.6%
  CG 306 (44.5%) 50.3%
mixed-grade classes (1/2) IG 123 (57.7%) 58.5%
  CG 90 (42.3%) 58.9%