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

Table 4. Uni- and multivariate Cox regression analysis for risk of prostate cancer-specific death.

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 8.8 1.0–71.0 0.042* 9.3 1.1–77.4 0.039* ref ref
>7 28.9 3.7–224.7 0.001* 37.6 4.8–296.2 0.001* 3.3 1.4–8.0 0.008* 3.0 0.9–9.3 0.063
sPSA
Continuous 1.80 0.99–3.24 0.051 1.02 0.98–1.07 0.31
pT category a
T2 ref ref
T3 60.3 1.4–2688.4 0.034* 41.4 0.6–2642.6 0.079
N category b
N0 ref ref
N1 6.5 2.5–16.9 <0.001* 5.5 2.1–14.6 0.001*
Lamin A
Low ref ref ref ref
High 0.3 0.2–1.5 0.27 0.4 0.16–1.0 0.052 0.4 0.1–1.0 0.052 0.4 0.2–1.2 0.11
Lamin B1
Low ref ref ref ref
High 1.5 0.4–5.1 0.55 1.6 0.5–5.7 0.44 1.4 0.4–5.1 0.57 1.7 0.5–6.1 0.40
Lamin B2
Low ref ref ref ref
High 0.5 0.2–1.2 0.11 0.41 0.17–0.99 0.047* 0.4 0.2–1.0 0.058 0.6 0.2–1.6 0.29
Lamin C
Low ref ref ref ref
High 0.4 0.2–1.2 0.095 0.2 0.1–0.6 0.004* 0.3 0.1–0.8 0.023* 0.3 0.1–0.9 0.03*

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

b N category describes in TNM system weather (N1) or not (N0) the cancer has spread to the regional lymph nodes.