Table 4

Multivariate Cox regression

Stage groupParameterNumeratorReferenceHazard ratio (95% CI)P value
Progression-free survival
Early-stageAge at diagnosis0.99 (0.96 to 1.03)0.6911
C/C+EYesNo1.14 (0.61 to 2.12)0.6756
Radiation*YesNo0.68 (0.33 to 1.38)0.2878
Chemotherapy cycles†≥5 cycles<5 cycles1.05 (0.57 to 1.92)0.8826
Tumor size>2 cm–≤4 cm≤2 cm3.57 (1.78 to 7.14) 0.0003
HistologyPureMixed1.54 (0.87 to 2.74)0.1392
Surgery‡YesNo2.09 (0.74 to 5.91)0.1634
Locally advancedAge at diagnosis1 (0.99 to 1.02)0.5877
C/C+EYesNo0.75 (0.5 to 1.14)0.1771
Nodal positivity§PositiveNegative1.46 (1.01 to 2.12) 0.0434
Chemotherapy cycles†≥5 cycles<5 cycles0.96 (0.63 to 1.45)0.8401
HistologyPureMixed1.24 (0.86 to 1.8)0.2491
Tumor size>4 cm≤4 cm1.11 (0.76 to 1.62)0.5740
AdvancedAge at diagnosis1.01 (0.99 to 1.04)0.2265
C/C+EYesNo0.96 (0.51 to 1.82)0.9014
Radiation*YesNo0.35 (0.19 to 0.65) 0.0009
Nodal positivityPositiveNegative1.66 (0.96 to 2.87)0.0689
Chemotherapy cycles†≥5 cycles<5 cycles1.14 (0.63 to 2.05)0.6702
HistologyPureMixed1.28 (0.62 to 2.66)0.5097
Tumor size>4 cm≤4 cm1.19 (0.64 to 2.2)0.5826
Overall survival
Early-stageAge at diagnosis0.99 (0.95 to 1.03)0.6187
C/C+EYesNo0.86 (0.44 to 1.7)0.6674
Radiation*YesNo0.57 (0.26 to 1.29)0.1792
Chemotherapy cycles†≥5 cycles<5 cycles0.92 (0.44 to 1.93)0.8255
Tumor size>2 cm -≤4 cm≤2 cm2.52 (1.11 to 5.68) 0.0265
HistologyPureMixed1.39 (0.71 to 2.75)0.3382
Surgery‡YesNo1.9 (0.48 to 7.51)0.3627
Locally advancedAge at diagnosis1.01 (0.99 to 1.02)0.2462
C/C+EYesNo0.75 (0.49 to 1.15)0.1859
Nodal positivity§PositiveNegative1.55 (1.06 to 2.28) 0.0248
Chemotherapy cycles†≥5 cycles<5 cycles0.83 (0.53 to 1.3)0.4235
Pure vs mixedPureMixed1.44 (0.99 to 2.12)0.0592
Tumor sizeT3 (>4 cm)≤4 cm1.03 (0.7 to 1.51)0.8975
AdvancedAge at diagnosis1.02 (0.99 to 1.04)0.1675
C/C+EYesNo0.33 (0.17 to 0.63) 0.0008
Radiation*YesNo0.32 (0.17 to 0.6) 0.0004
Nodal positivityPositiveNegative1.38 (0.82 to 2.34)0.2263
Chemotherapy cycles†≥5 cycles<5 cycles0.77 (0.45 to 1.33)0.3550
HistologyPureMixed1.06 (0.54 to 2.07)0.8605
Tumor size>4 cm≤4 cm3.12 (1.56 to 6.24) 0.0013
Survival from first recurrence or progression
Early-stageAge at diagnosis0.98 (0.94 to 1.02)0.3703
Texas cocktailYesNo0.81 (0.33 to 1.98)0.6472
Curative radiationYesNo0.8 (0.34 to 1.9)0.6086
Chemotherapy cycles†≥5 cycles<5 cycles0.75 (0.34 to 1.66)0.4757
Tumor size>2 cm–≤4 cm≤2 cm0.72 (0.32 to 1.64)0.4312
HistologyPureMixed0.97 (0.46 to 2.04)0.9345
Surgery‡YesNo0.35 (0.07 to 1.74)0.2010
Locally advancedAge at diagnosis1.01 (1 to 1.02)0.1866
Texas cocktailYesNo0.74 (0.44 to 1.26)0.2698
Nodal positivityPositiveNegative1.22 (0.82 to 1.82)0.3235
Chemotherapy cycles†≥5 cycles<5 cycles0.74 (0.49 to 1.11)0.1447
HistologyPureMixed2.00 (1.35 to 2.98) 0.0006
Tumor sizeT3 (>4 cm)≤4 cm1.08 (0.71 to 1.63)0.7217
AdvancedAge at diagnosis1.01 (0.98 to 1.03)0.5367
Texas cocktailYesNo0.52 (0.27 to 0.99) 0.0454
Radiation*YesNo0.44 (0.22 to 0.89) 0.0228
Nodal positivityPositiveNegative0.91 (0.52 to 1.57)0.7324
Chemotherapy cycles†≥5 cycles<5 cycles0.78 (0.39 to 1.59)0.5005
HistologyPureMixed0.94 (0.48 to 1.85)0.8659
Tumor size>4 cm≤4 cm3.18 (1.56 to 6.46) 0.0014
  • No C/C+E is defined as no chemotherapy or other chemotherapy agents.

  • Texas cocktail is defined as a combination of topotecan, paclitaxel, and bevacizumab.

  • *Curative radiation therapy with or without chemotherapy. No curative radiation therapy is defined as chemotherapy alone or with palliative radiation therapy.

  • †Chemotherapy cycles is defined as the total number of cycles of C/C+E (concurrently with radiation therapy and as additional chemotherapy).

  • ‡Surgery is defined as a simple hysterectomy, radical hysterectomy, or radical trachelectomy. No surgery is defined as not having had any of those three types of procedure.

  • §Nodal positivity (pelvic and/or para-aortic) based on pathology report for patients who underwent surgery (sentinel lymph node biopsy and/or pelvic lymphadenectomy and/or para-aortic lymphadenectomy) and images for patients who did not undergo surgery.

  • C/C+E, cisplatin/carboplatin+etoposide.