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. Author manuscript; available in PMC: 2015 Nov 20.
Published in final edited form as: Stat Med. 2014 Jul 10;33(26):4590–4604. doi: 10.1002/sim.6257

Table 5.

Breast cancer data: estimated coefficients and standard errors (in parentheses) in the correlated subhazard frailty model for a type 1 event

Variable No-penalty LASSO SCAD HL
x1: GROUP=tamoxifen −0.617(0.107) −0.528 (0.097) −0.610(0.106) −0.521 (0.097)
x2: RACE1 −0.202 (0.267) 0 (0) 0 (0) 0 (0)
x3: RACE2 −0.165 (0.340) 0 (0) 0 (0) 0 (0)
x4: MENSE1 0.112(0.222) 0 (0) 0 (0) 0 (0)
x5: MENSE2 −0.158(0.265) 0 (0) 0 (0) 0 (0)
x6: RNOD −0.139(0.051) −0.124 (0.046) −0.139(0.050) −0.109 (0.044)
x7: TSIZE 0.272 (0.041) 0.254 (0.039) 0.266 (0.040) 0.253 (0.039)
x8: ER 0.077 (0.037) 0.069 (0.035) 0.022 (0.019) 0.068 (0.032)
x9: PR 0.058 (0.045) 0.052 (0.040) 0 (0) 0 (0)
x10: SURGTYPE=mastectomy −0.089(0.101) 0 (0) 0 (0) 0 (0)

HL, h-likelihood penalty function; GROUP, treatment group (placebo, tamoxifen); RACE, race (white, black, other); RACE1=I(RACE=white); RACE2=I(RACE=black); MENSE, menopausal status (premenopausal, perimenopausal, postmenopausal); MENSE1=I(MENSE=premenopausal); MENSE2=I(MENSE=perimenopausal); RNOD, number of nodes removed; TSIZE, tumor size (mm); ER, estrogen receptor level; PR, progesterone receptor level; SURGTYPE, surgery type (lumpectomy, mastectomy)