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Table 1 Descriptive analyses of covariates

From: Reduced caregiving quality measured during the strange situation procedure increases child’s autonomic nervous system stress response

   Disrupted Non-disrupted Chi2-test
N Male (%) Female (%) Chi2 df p
Infant sex 163 65.5 72.2 .84 1 .36
       Independent t-test
  N M SD M SD t df p
Mother’s age at laboratory visit 157 33.22 5.13 33.54 3.69 .43 155 .67
  1. *Chi2-test
  2. **Independent t-test