Evid Based Nurs 3:36-39 doi:10.1136/ebn.3.2.36

Estimating treatment effects: real or the result of chance?

Table 2

Nurse home visits v usual care for infant birth weight and emotional/cognitive stimulation

Dependent variables Nurse visited group mean Comparison group mean Mean difference 95% confidence interval
Birth weight, g 3032.2 3050.4 −18.2 −98.7 to 62.4
Emotional/cognitive stimulation (score) 32.3 30.9 1.3 0.4 to 2.2

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