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Table 5 Normative percentile ranks for the GBB subscale scores

From: Psychometric properties and validation of the English version Giessen Subjective Complaints List (GBB-8)

Sum score Exhaustion Gastrointestinal Musculoskeletal Cardiovascular
0 14 20 14 23
1 23 29 21 31
2 32 37 29 40
3 44 44 40 48
4 54 59 53 67
5 73 73 72 77
6 84 87 81 94
7 98 94 97 98
8 100 100 100 100