Penelope M. Webb

ORCID: 0000-0003-0733-5930 · 137 papers in corpus
observational 2026
British journal of cancer ·doi:10.1038/s41416-026-03509-8

BACKGROUND: Prior studies have examined survival in patients with epithelial ovarian cancer (EOC); however, few consider race and ethnicity, particularly disaggregating Asian and Native Hawaiian/Pacific Islander women. METHODS: We analysed…

other 2026
JAMA network open ·doi:10.1001/jamanetworkopen.2025.57267
review 2025
The Journal of Pathology ·doi:10.1002/path.6407

Mucinous ovarian carcinoma (MOC) is a rare histotype of epithelial ovarian cancer. Its origins are obscure: while many mucinous tumours in the ovary are metastases from the gastrointestinal tract, MOC can occur as an ovarian primary; howeve…

other 2025
The American journal of clinical nutrition ·doi:10.1016/j.ajcnut.2025.02.004

BACKGROUND: Prognosis after a diagnosis of invasive epithelial ovarian cancer is poor. Some studies have suggested modifiable behaviors, like diet, are associated with survival but the evidence is inconsistent. OBJECTIVES: This study aims …

other 2025
Gynecologic Oncology ·doi:10.1016/j.ygyno.2025.05.013

OBJECTIVE: Many epithelial ovarian cancer (EOC) risk factors relate to sex hormones. The association between these factors and the expression of androgen receptor (AR), estrogen receptor-α (ER), and progesterone receptor (PR) in tumors is u…

other 2025
Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology ·doi:10.1158/1055-9965.EPI-24-1143

BACKGROUND: Ovarian high-grade serous carcinomas (HGSC) comprise four distinct molecular subtypes based on mRNA expression patterns, with differential survival. Understanding risk factor associations is important to elucidate the etiology o…

observational 2025
·doi:10.1158/1055-9965.30723572

Supplementary Figure 1 shows a flowchart of exclusions to obtain the study population, with the number of cases and controls eligible for the analysis.

observational 2025
·doi:10.1158/1055-9965.30723569

Supplementary Figure 2 shows two forest plots depicting the association between (A) dietary folate intake and (B) supplemental folate intake and ovarian cancer for women with endometriosis, stratified by potential effect modifiers

2025
·doi:10.1158/1055-9965.30723566

Supplementary Figure 3 shows scatter plots with the genetic association with folate on the x-axis and the genetic association with ovarian cancer on the y-axis, for (A) women with and (B) without endometriosis. The regression line for the i…

observational 2025
·doi:10.1158/1055-9965.30723563

Supplementary Table 1 shows the range of folate intake included in each tertile, by OCAC study site.

2025
·doi:10.1158/1055-9965.30723560

Supplementary Table 2 shows the single nucleotide polymorphisms (SNPs) used as instruments for folate level in the Mendelian randomization analysis.

observational 2025
·doi:10.1158/1055-9965.30723557

Supplementary Table 3 shows the associations between folate intake (dietary, supplemental, total) and ovarian cancer by endometriosis status, and by histological subtype (endometrioid/clear cell cancers and high grade serous cancers).

observational 2025
·doi:10.1158/1055-9965.30723554

Supplementary Table 4 shows the association between glycemic index, glycemic load, grain intake and risk of ovarian cancer for women with and without endometriosis.

observational 2025
·doi:10.1158/1055-9965.30723551

Supplementary Table 5 shows the results from the different Mendelian randomization methods investigating the association between genetically predicted folate and risk of ovarian cancer, by endometriosis status

2024
·doi:10.1158/1055-9965.c.6695948.v3

AbstractBackground While folate intake has not been associated with an increased risk of ovarian cancer overall, studies of other cancer types have suggested that high folate intake may promote carcinogenesis in pre-cancerous lesions. Women…

observational 2024
American journal of human genetics ·doi:10.1016/j.ajhg.2024.04.011

To identify credible causal risk variants (CCVs) associated with different histotypes of epithelial ovarian cancer (EOC), we performed genome-wide association analysis for 470,825 genotyped and 10,163,797 imputed SNPs in 25,981 EOC cases an…

observational 2024
American Journal of Epidemiology ·doi:10.1093/aje/kwae076

Limited estimates exist on risk factors for epithelial ovarian cancer (EOC) in Asian, Hispanic, and Native Hawaiian/Pacific Islander women. Participants in this study included 1734 Asian (n = 785 case and 949 control participants), 266 Nati…

other 2024
Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology ·doi:10.1158/1055-9965.EPI-23-0984

BACKGROUND: Women with an inherited pathogenic variant in BRCA1 or BRCA2 have a greatly increased risk of developing ovarian cancer, but the importance of behavioral factors is less clear. We used a case-only design to compare the magnitude…

observational 2024
·doi:10.1158/1055-9965.27029584.v1

Supplementary Figure 1 shows a flowchart of exclusions to obtain the study population, with the number of cases and controls eligible for the analysis.

observational 2024
·doi:10.1158/1055-9965.27029584

Supplementary Figure 1 shows a flowchart of exclusions to obtain the study population, with the number of cases and controls eligible for the analysis.

observational 2024
·doi:10.1158/1055-9965.27029581

Supplementary Figure 2 shows two forest plots depicting the association between (A) dietary folate intake and (B) supplemental folate intake and ovarian cancer for women with endometriosis, stratified by potential effect modifiers

observational 2024
·doi:10.1158/1055-9965.27029581.v1

Supplementary Figure 2 shows two forest plots depicting the association between (A) dietary folate intake and (B) supplemental folate intake and ovarian cancer for women with endometriosis, stratified by potential effect modifiers

observational 2024
·doi:10.1158/1055-9965.27029578

Supplementary Figure 3 shows scatter plots with the genetic association with folate on the x-axis and the genetic association with ovarian cancer on the y-axis, for (A) women with and (B) without endometriosis. The regression line for the i…

observational 2024
·doi:10.1158/1055-9965.27029578.v1

Supplementary Figure 3 shows scatter plots with the genetic association with folate on the x-axis and the genetic association with ovarian cancer on the y-axis, for (A) women with and (B) without endometriosis. The regression line for the i…

observational 2024
·doi:10.1158/1055-9965.27029575

Supplementary Table 1 shows the range of folate intake included in each tertile, by OCAC study site.