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. 2016 Feb 6;17:64. doi: 10.1186/s12891-016-0912-3

Table 3.

Percentage of subjects gaining 50, 75 and 100 % reduction in headache intensity (NPRS) and disability (NDI) as well as the numbers needed to treat at 3 months

Variable Manipulation (n = 58) Mobilization & Exercise (n = 52)
Headache Intensity (NPRS 0–10)
 50 % Reduction 74.1 % 38.5 %
 75 % Reduction 48.3 % 13.5 %
 100 % Reduction 29.3 % 3.8 %
Number of individuals achieving at least a 2 point improvement in pain 53 33
Numbers Needed to Treat 4.0 (95 % CI: 2.3, 7.7)
Disability (NDI 0–50)
 50 % Reduction 74.1 % 23.1 %
 75 % Reduction 43.1 % 9.6 %
 100 % Reduction 19.0 % 1.9 %