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Table 3 Numbers needed to treat based on improvement of at least 1 h of crying

From: The effect of chiropractic care on infantile colic: results from a single-blind randomised controlled trial

 

Improvement of at least one hour of crying

Total

NNT (CI)

 

No

Yes

Treatment group

36 (37.5)

60 (62.5)

96 (100.0)

6.5 (3.5–101.9)

Control group

47 (52.8)

42 (47.2)

89 (100.0)

Total

83 (44.9)

102 (55.1)

185 (100.0)

 
  1. Risk of improvement for control (p0): 0.472. Risk of improvement for intervention (p1): 0.625. Risk difference (p1 - p0): 0.153. Newcombe Method 10 95% CI: 0.010–0.288