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Table 1 Data collection in NTR triplets

From: Birth weight in a large series of triplets

Questionnaire N trio list retour N triplet list retour Response rate
Q familial twinning 269   80%
Q1 323   58%
Q2 264   49%
CBCL age 3 - 12 mother   516 54 - 68%
CBCL age 3 - 12 father   510 54 - 68%
TRF consent form age 6 - 12 106   62%
TRF age 6 - 12   188 78%
YSR age 14 - 18   212 30 - 48%
ANTR surveys (list 1 to 8; ongoing)   315 47 - 48%
  1. CBCL = Child Behavior Check List; TRF = Teacher Report Form; YSR = Youth Self Report; NTR = Netherlands Twin Register; ANTR = Adult NTR. Trio list are surveys inquiring about the trio, triplet list are surveys inquiring about a triplet.