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Figure 3 | BMC Neurology

Figure 3

From: A novel needle for subcutaneous injection of interferon beta-1a: effect on pain in volunteers and satisfaction in patients with multiple sclerosis

Figure 3

Volunteers' perception of pain associated with injections using different needle types on (a) the Visual Analog Scale (VAS) and (b) the Verbal VAS (VB-VAS) in the single-center French study (n = 120). The number next to the key indicates the magnitude of mean pain associated with each needle: 1 = lowest level of pain; 8 = highest level of pain. aNeedle currently used for the injection of interferon beta-1a (IFN β-1a), 44 or 22 mcg subcutaneously three times weekly. bSilicone lubricant B was used with this needle; for all other needles, silicone lubricant A was used. cNeedle used previously for the injection of IFN β-1a, 44 or 22 mcg sc tiw. CI, confidence interval; G, gauge; TPE, Thermo Plastic Elastomer.

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