Table 2

SF-36 scale scores and adjusted mean differences between the overall CML population and the matched control group

SF-36 scalesCML patients, mean (SD)Matched control group, mean (SD)Mean difference* (95% CI)P
Physical health     
    Physical functioning 76.8 (24.8) 80.5 (25.4) −3.9 (−6.7; −1.1) .006 
    Role physical 61.6 (42.2) 73.0 (40.2) −11.5 (−16.8; −6.3) < .001 
    Bodily pain 70.4 (26.2) 70.7 (28.7) −0.3 (−3.7; 3.2) .882 
    General health 52.7 (22.6) 61.2 (22.9) −8.9 (−11.7; −6.0) < .001 
    PCS 46.0 (9.6) 48.2 (10.3) −2.4 (−3.6; −1.3) < .001§ 
Mental health     
    Vitality 56.2 (21.2) 60.7 (20.8) −4.6 (−7.4; −1.8) .001 
    Social functioning 73.9 (22.7) 76.7 (24.3) −2.9 (−6.0; 0.2) .069 
    Role emotional 64.5 (40.7) 73.9 (38.0) −9.6 (−14.9; −4.3) < .001 
    Mental health 67.1 (19.8) 66.3 (21.7) 0.6 (−2.1; 3.4) .659 
    MCS 49.3 (9.8) 50.2 (9.7) −0.9 (−2.3; 0.4) .166 
SF-36 scalesCML patients, mean (SD)Matched control group, mean (SD)Mean difference* (95% CI)P
Physical health     
    Physical functioning 76.8 (24.8) 80.5 (25.4) −3.9 (−6.7; −1.1) .006 
    Role physical 61.6 (42.2) 73.0 (40.2) −11.5 (−16.8; −6.3) < .001 
    Bodily pain 70.4 (26.2) 70.7 (28.7) −0.3 (−3.7; 3.2) .882 
    General health 52.7 (22.6) 61.2 (22.9) −8.9 (−11.7; −6.0) < .001 
    PCS 46.0 (9.6) 48.2 (10.3) −2.4 (−3.6; −1.3) < .001§ 
Mental health     
    Vitality 56.2 (21.2) 60.7 (20.8) −4.6 (−7.4; −1.8) .001 
    Social functioning 73.9 (22.7) 76.7 (24.3) −2.9 (−6.0; 0.2) .069 
    Role emotional 64.5 (40.7) 73.9 (38.0) −9.6 (−14.9; −4.3) < .001 
    Mental health 67.1 (19.8) 66.3 (21.7) 0.6 (−2.1; 3.4) .659 
    MCS 49.3 (9.8) 50.2 (9.7) −0.9 (−2.3; 0.4) .166 

CML indicates chronic myeloid leukemia; PCS, physical component summary; MCS, mental component summary; SD, standard deviation; and CI, confidence interval.

*

Mean differences adjusted for age, sex, education, geographical area, and marital status.

Exceeds minimally important difference (ie, 8 points for the SF-36 scales and 2 points for the PCS and MCS scores).

Statistically significant after Bonferroni adjustment (adjusted alpha = 0.05/8 = 0.006 25).

§

Statistically significant (alpha = 0.05).

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