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Table 2 Cross-tables of dual acupoints classified by similarity

From: Role of dermatomes in the determination of therapeutic characteristics of channel acupoints: a similarity-based analysis of data compiled from literature

Dual acupoint similarity on: Traditional action
  Category Null to negligible Very weak Weak Moderate Strong Very strong
            Dermatome Null to negligible 118872 5763 440 23 12 0
Calculated: γ = 0.542; γ*2 ≈ 16% Very weak 223 14 5 0 0 0
Bootstrap estimation: γ = 0.446 [0.444; 0.447] Weak 1460 187 27 2 2 0
Moderate 2166 372 58 3 0 0
Permutation test:γ = 0.002 [0.001; 0.006] Strong 259 64 8 0 0 0
Very strong 0 0 0 0 0 0
  Contemporary indication
            Dermatome Null to negligible 120799 4083 206 22 0 0
Calculated: γ = 0.657; γ*2 ≈ 25% Very weak 215 27 0 0 0 0
Bootstrap estimation: γ = 0.622 [0.621; 0.623] Weak 1447 212 17 2 0 0
Moderate 2197 379 17 2 2 2
Permutation test: γ = −0.001 [−0.006; 0.002] Strong 254 75 2 0 0 0
Very strong 0 0 0 0 0 0
  Contemporary indication
          Traditional action Null to negligible 119094 3706 172 6 0 2
Calculated: γ = 0.716; γ*2 ≈ 30% Very weak 5444 898 48 8 2 0
Bootstrap estimation: γ = 0.716 [0.715; 0.719] Weak 360 160 16 2 0 0
Moderate 12 8 6 2 0 0
Permutation test: γ = 0.000 [−0.001; 0.005] Strong 2 4 0 8 0 0
Very strong 0 0 0 0 0 0