FIGURE 3.

Forest plot of the effect-size confidence intervals of all studies evaluating neck pain without researcher effect. Results are homogenous and the pooled estimate is statistically significant.

Abbreviations for Figures 2 and 3: C10 = Cleland¹⁰; C13 = Cleland¹³; CMCC = CMCC Neck Disability Index; GI17 = Gonzalez-Iglesias et al¹⁷; GI18 = Gonzalez-Iglesias et al¹⁸; K = Krauss et al¹⁹; LBLM = left cervical bilateral motion; LROM = left cervical range of motion; McGill = McGill Short-form Pain Questionnaire; NPQ = Northwick Neck Pain Questionnaire; NPRS = Numeric Pain Rating Scale; NDI = Neck Disability Index; PS = Parkin-Smith and Penter⁴⁷; RBLM = right cervical bilateral motion; RROM = right cervical range of motion; VAS = visual analog scale for pain