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Table 1 Descriptive data on postural control, neck PPT, and generalized pain

From: Associations between pressure pain threshold in the neck and postural control in patients with dizziness or neck pain – a cross-sectional study

VariableDizziness group (n = 235)Neck pain group (n = 125)
Age45.7 ± 1241 ± 11
Sex (female) (%)73.5%79.2%
Duration dizziness, monthsa12 (6–38) 
Duration neck pain, monthsa 14 (5–89)
Concurrent complaints (%)53%45%
Posturographya, sway area, mm2
 -Eyes open; bare platform226 (148–419)144 (93–212)
 -Eyes closed; bare platform403 (243–904)213 (124–328)
 -Eyes open; foam mat544 (346–887)277 (194–368)
 -Eyes closed; foam mat1662 (1019–2956)639 (432–1028)
Romberg ratioa,c
 -Bare platform1.85 (1.13–2.74)1.49 (1.07–1.98)
 -Foam mat3.12 (2.19–4.39)2.26 (1.71–3.14)
PPT, kPab
 -Upper neck216.7 ± 112.8219.3 ± 115.8
 -Lower neck184.0 ± 86.4192.8 ± 96.6
Generalized pain (ACR count)9.2 ± 5.97.7 ± 4.9
  1. aReported as median and interquartile range, bReported as mean and standard deviation, cRomberg ratio = sway area with eyes closed divided by sway area with eyes open. PPT Pressure pain threshold, ACR American College of Rheumatology tender points, n sample size. Concurrent complaints presence of both dizziness and neck pain the last 14 days