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Table 2 Participant characteristics (N = 219)

From: Polymorphisms in DNA repair and oxidative stress genes associated with pre-treatment cognitive function in breast cancer survivors: an exploratory study

Characteristic (measure) Group A (n = 55) Mean ± SD or n (%) Group B (n = 83) Mean ± SD or n (%) Healthy controls (n = 81) Mean ± SD or n (%) F or χ2 test statistic p value
Age (years) 58.76 ± 5.47 62.47 ± 5.96 60.06 ± 6.08 <.001*
Education (years) 15.67 ± 2.78 14.95 ± 3.06 14.84 ± 2.91 .232
Estimated verbal intelligence (NART-R) 108.94 ± 8.87 107.04 ± 8.84 114.72 ± 7.84 <.001*
Depression (BDI-II) 5.24 ± 6.61 4.60 ± 4.65 4.83 ± 5.52 .760
Anxiety (POMS tension-anxiety subscale) 9.61 ± 6.14 6.97 ± 4.65 6.61 ± 5.63 .004*
Fatigue (POMS fatigue-inertia subscale) 5.11 ± 5.33 5.84 ± 6.35 5.74 ± 5.99 .759
Pain (BPI) 1.47 ± 1.96 1.55 ± 2.27 0.94 ± 2.07 .144
Marital status, married 38 (69.1) 54 (65.1) 46 (56.8) .306
Number of children 1.75 ± 1.22 2.05 ± 1.39 2.12 ± 1.53 .283
Race, Caucasian 52 (94.5) 81 (97.6) 75 (92.6) .337
Cancer stage
 Stage 1 25 (45.5) 69 (83.1)
 Stage 2a 19 (34.5) 12 (14.5)
 Stage 2b 5 (9.1) 2 (2.4)
 Stage 3a 6 (10.9) 0 (0.0)
  1. SD, standard deviation; Group A, prescribed chemotherapy plus anastrozole; Group B, prescribed anastrozole alone; NART-R, National Adult Reading Test-Revised; BDI-II, Beck Depression Inventory-II, POMS, Profile of Mood States; BPI, Brief Pain Inventory. One-way ANOVAs utilized to compare study cohort means of continuous variables. Pearson’s Chi square tests of independence used to examine the general associations between categorical variables
  2. * p < .05