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Table 2 Comparison of health-related quality of life (SF-12) between oral cancer survivors (n = 142) and controls (n = 142)

From: Oral and general health-related quality of life in patients treated for oral cancer compared to control group

Variable Cases Controls p a
Mean ± sd Mean ± sd
Physical functioning 41.2 ± 13.0 42.7 ± 12.2 0.295
Role physical 40.7 ± 13.0 44.6 ± 12.0 0.009
Bodily pain 46.4 ± 9.2 50.0 ± 7.0 <0.001
General health 44.0 ± 6.2 45.9 ± 7.9 0.023
Vitality 45.4 ± 7.9 46.6 ± 8.6 0.227
Social functioning 43.0 ± 12.5 45.6 ± 9.6 0.055
Role emotional 44.7 ± 12.6 47.2 ± 10.0 0.063
Mental health 44.8 ± 8.9 45.1 ± 7.9 0.732
Physical component summaryb 42.2 ± 12.0 45.5 ± 11.2 0.019
Mental component summaryc 45.8 ± 11.6 46.6 ± 8.9 0.509
  1. aStudent’s t test; bThe effect size of the difference was 0.28 (95% CI: 0.05-0.51); cThe effect size of the difference was 0.08 (95% CI: −0.15-0.31).