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. Author manuscript; available in PMC: 2021 Nov 1.
Published in final edited form as: Cancer. 2020 Feb 27;126(10):2296–2304. doi: 10.1002/cncr.32757

TABLE 4.

Bivariate and Logistic Regression Results for PCS Trajectory Group

Bivariate Associations
Logistic Regression Modelb
Prediagnosis Predictora Low Group (n = 36) High Group (n = 102) P Parameter Estimate (SE) P OR (95% CI)

Age at diagnosis, y, mean (SD) 57.5 (6.8) 57.1 (5.9) .77 0.0002 (0.04) .99 1.0 (0.92–1.09)
Race/ethnicity, n (%) .09 .49
 Non-Hispanic white 13 (36.1) 54 (52.9) Reference
 Black 12 (33.3) 27 (26.5) −0.33 (0.49) .51 1.48 (0.48–4.58)
 Chinese 4 (11.1) 6 (5.9) 0.61 (0.67) .37 3.76 (0.75–18.82)
 Hispanic 3 (8.3) 1 (1.0) 0.74 (1.08) .49 4.31 (0.29–63.55)
 Japanese 4 (11.1) 14 (13.7) −0.30 (0.66) .65 1.52 (0.32–7.33)
Education, n (%)c .015 −0.42 (0.33)c .20 0.65 (0.34–1.26)
 High school or less 11 (31.4) 15 (14.9)
 Some college 13 (37.1) 27 (26.7)
 College or more 11 (31.4) 59 (58.4)
Very/somewhat hard to pay for basics, n (%) 15 (41.7) 21 (20.6) .01 0.63 (0.52) .23 1.88 (0.67–5.27)
No. of comorbidities, n (%)c .006 0.79 (0.40) .048 2.20 (1.01–4.81)
 0 4 (11.1) 22 (21.6)
 1 6 (16.7) 38 (37.3)
 ≥2 26 (72.2) 42 (41.2)
Body mass index, mean (SD) 32.9 (9.0) 28.1 (7.1) .002 0.04 (0.03) .22 1.04 (0.98–1.11)
Perceived stress, mean (SD) 8.0 (3.1) 7.0 (2.9) .09 0.10 (0.08) .21 1.11 (0.95–1.29)
Optimism, mean (SD) 11.8 (3.4) 13.0 (3.1) .06 −0.12 (0.08) .12 0.88 (0.76–1.03)

Abbreviations: PCS, physical component summary; OR, odds ratio.

a

The following variables did not meet the P < .10 criterion for inclusion in the multivariable logistic regression: partner status, menopause status, vasomotor symptoms, vaginal dryness, physical activity, current smoking, alcohol use, sleep problems, social support, trait anxiety, stressful life events, cancer stage, cancer surgery, chemotherapy, radiation therapy.

b

Predicts odds of membership in the low trajectory group.

c

Treated as single ordinal variable (3 ordered levels) in the multivariable model.

P values < .05 are bolded.