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. 2015 Oct 15;10(10):e0140671. doi: 10.1371/journal.pone.0140671

Table 3. Uni- and multivariate Cox regression analysis for risk of biochemical recurrence.

In addition to entire study cohort, a subpopulation of patients with GS>6 tumor was analyzed separately.

Entire group Subgroup (GS>6)
Univariate Multivariate Univariate Multivariate
Variable HR 95% CI p-value HR 95% CI p-value HR 95% CI p-value HR 95% CI p-value
Gleason score
<7 ref ref na na
7 1.9 1.2–3.0 <0.003* 1.3 0.8–2.3 0.32 ref ref
>7 4.8 3.0–7.5 <0.001* 2.6 1.5–4.7 0.001* 2.4 1.7–3.5 <0.001* 2.0 1.0–3.3 <0.002*
sPSA
Continuous 1.06 1.05–1.08 <0.001* 1.04 1.02–1.06 <0.001* 1.05 1.04–1.07 <0.001* 1.04 1.02–1.06 <0.001*
pT category a
pT2 ref ref ref ref
pT3 3.1 2.1–4.6 <0.001* 2.2 1.3–3.5 0.002* 2.3 1.4–3.7 0.001* 1.7 1.0–2.9 0.053
Lamin A
Low ref ref ref ref
High 1.0 0.7–1.3 0.85 0.81 0.5–1.2 0.29 0.9 0.6–1.3 0.58 0.7 0.5–1.1 0.15
Lamin B1
Low ref ref ref ref
High 1.5 1.0–2.2 0.04* 1.8 1.1–2.9 0.023* 1.7 1.0–2.7 0.036* 1.6 0.9–2.9 0.077
Lamin B2
Low ref ref ref ref
High 1.1 0.8–1.6 0.48 0.95 0.6–1.4 0.81 0.95 0.6–1.4 0.82 0.85 0.5–1.4 0.49
Lamin C
Low ref ref ref ref
High 1.0 0.5–1.9 0.88 0.70 0.3–1.7 0.41 1.1 0.5–2.5 0.9 0.58 0.2–1.7 0.32

HR, hazard ratio (describes the relative risk of the event at any given time based on comparing the group with the reference group); 95% CI, 95% confidence interval (A 95% confidence interval means that 95% of the values of an unobservable parameter of interest would set in the interval if the experiment is repeated); na, not available; ref, reference

* Significant p-value

a Pathological T category refers to the stage of primary tumor in the TNM tumor staging system. pT2 = Tumor confined within prostate, pT3 = Tumor invading extraprostatic tissue and/or seminal vesicle(s).