A 2013 meta-analysis by Fortmann and Gallo [ 50 ] showed that of the studies that used the Interpersonal Support Evaluation List (ISEL) measure to assess social support, only one study showed social support associated with both SBP and DBP dipping [ 51 ], one study associated social support with only SBP dipping [ 52 ], one study found no results for either SBP or DBP dipping [ 53 ], and one study [ 54 ] found a marginally significant association between social support and SBP dipping.
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