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Table 4 Missingness of body composition measurements

From: Strength exercises during physical education classes in secondary schools improve body composition: a cluster randomized controlled trial

 

T1

Total n

Missing

Not Missing

 

Body composition measurement

Control T0

Missing

119 (35%)

24 (7%)

143 (42%)

Not Missing

84 (25%)

115 (34%)

199 (58%)

Total n

 

203 (59%)

139 (41%)

342 (100%)

Intervention T0

Missing

105 (30%)

24 (7%)

129 (37%)

Not Missing

94 (27%)

130 (37%)

224 (63%)

Total n

 

199 (56%)

154 (44%)

353 (100%)

Physical activity measurement

Control T0

Missing

99 (29%)

17 (5%)

116 (34%)

Not Missing

124 (36%)

102 (30%)

226 (66%)

Total n

 

223 (65%)

119 (35%)

342 (100%)

Intervention T0

Missing

104 (29)

15 (4%)

119 (34%)

Not Missing

130 (37%)

104 (29%)

234 (66%)

Total n

 

234 (66%)

119 (34%)

353 (100%)

  1. See section 3.2 for an explanation how missingness was handled in the analyses