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Table 2 Effect of Surveillance Method on Self-Report Measures

From: Randomized trial of surveillance with abbreviated MRI in women with a personal history of breast cancer– impact on patient anxiety and cancer detection

  Observed means ± standard deviations   
Outcome Time 1 Time 2 Time 3 Estimated mean difference between groups at Time 2 (95% CI) Estimated mean difference between groups at Time 3 (95% CI)
STAI-Trait
 MG alone 51.50 ± 2.6 51.55 ± 2.8 51.79 ± 2.5 -0.37 (-1.23 to 0.49) -0.80 (-1.71 to 0.10)
 MG + A- MRI 51.61 ± 2.5 51.20 ± 2.2 50.94 ± 2.5   
STAI-State
 MG alone 51.85 ± 2.8 45.14 ± 5.7 50.99 ± 4.6 -2.16 (-4.20 to 0.13)* - 0.79 (-0.48 to 2.07)
 MG + A-MRI 51.07 ± 2.9 42.88 ± 6.3 51.73 ± 2.6   
PSWQ
 MG alone 40.23 ± 13.7 39.52 ± 13.4 38.98 ± 14.2 0.83 (-3.4 to 5.1) 2.43 (-1.98 to 6.84)
 MG + A-MRI 42.20 ± 13.4 41.08 ± 14.5 44.41 ± 14.2   
BCWS
 MG alone 6.87 ± 2.4 6.93 ± 2.4 6.44 ± 2.1 -0.40 (-1.11 to 0.30) -0.27 (-0.99 to 0.45)
 MG + A-MRI 6.73 ± 2.3 6.55 ± 2.3 6.39 ± 2.1   
HSQ-12
 MG alone 617.52 ± 143.7 603.57 ± 122.5 590.54 ± 156.3 -6.12 (-48.48 to 36.34) 25.41 (-23.32 to 74.13)
 MG + A-MRI 597.94 ± 145.3 596.73 ± 141.5 611.44 ± 123.5   
  1. Note: Analysis is based on the intent-to-treat sample. Questionnaires were completed upon enrolment during consultation (T1; n = 92 MG alone and n = 103 MG + A-MRI), upon receipt of the MG and/or MRI results (T2; n = 61 MG alone and n = 84 MG + A-MRI), and 6- months later (T3; n = 49 MG alone n = 73 MG + A-MRI)
  2. For all questionnaires, higher scores represent higher anxiety or worry
  3. STAI State Trait Anxiety Trait (i.e., how the personal generally feels) and State (i.e., how the person feels at this moment), PSWQ Penn State Worry Questionnaire, BCWQ Breast Cancer Worry Scale, HSQ Health Status Questionnaire
  4. Range of scores: For the trait-STAI scores range from 20–80 and the state-STAI scores range from 20–80, with cut-off scores of ≥ 31.8 and ≥ 32.2 indicating elevated levels of trait and state anxiety, respectively. The PSWQ scores range from 16–80 (higher scores indicating higher worry), and the BCWS summed scores range from 3 (low worry) to 12 (high worry). The scores for the HSQ-12 range from 0 to 800, with higher scores indicating better perceived health status
  5. *p < .05 MG alone vs MG + A- MRI