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Table 3 One sample Z-test

From: Health-Related Quality of Life in people with Multiple Sclerosis: How does this Population Compare to Population-based Norms in Different Health Domains?

Population mean 50 ± 10 Subscales Composite scores
PF RP BP GH VT SF RE MH PCS MCS
Sample mean 43.12 40.95 45.55 42.84 42.04 39.83 41.49 44.27 43.45 42.16
N 120 120 120 120 120 120 120 120 120 120
Z value, p < .01 − 7.54 − 9.91 − 4.87 − 7.84 − 8.72 − 11.14 − 9.32 − 6.28 − 7.18 − 8.58
Cohen’s d .688 .905 .445 .716 .7961 1.017 .851 .573 .655 .784
  1. Calculated based on norm-based scores using Optum SF-36V2v2 software [32]
  2. PF physical function, RP role physical, BP bodily pain, GH general health, VT vitality, SF social function, RE role emotional, MH mental health, PCS physical component summary, MCS mental health component summary