Male circumcision, penile human papillomavirus infection, and cervical cancer in female partners

Background: It is uncertain whether male circumcision reduces the risks of penile human papillomavirus (HPV) infection in the man and of cervical cancer in his female partner. Methods: We pooled data on 1913 couples enrolled in one of seven case-control studies of cervical carcinoma in situ and cervical cancer in five countries. Circumcision status was self-reported, and the accuracy of the data was confirmed by physical examination at three study sites. The presence or absence of penile HPV DNA was assessed by a polymerase-chain-reaction assay in 1520 men and yielded a valid result in the case of 1139 men (74.9 percent). Results: Penile HPV was detected in 166 of the 847 uncircumcised men (19.6 percent) and in 16 of the 292 circumcised men (5.5 percent). After adjustment for age at first intercourse, lifetime number of sexual partners, and other potential confounders, circumcised men were less likely than uncircumcised men to have HPV infection (odds ratio, 0.37; 95 percent confidence interval, 0.16 to 0.85). Monogamous women whose male partners had six or more sexual partners and were circumcised had a lower risk of cervical cancer than women whose partners were uncircumcised (adjusted odds ratio, 0.42; 95 percent confidence interval, 0.23 to 0.79). Results were similar in the subgroup of men in whom circumcision was confirmed by medical examination. Conclusions: Male circumcision is associated with a reduced risk of penile HPV infection and, in the case of men with a history of multiple sexual partners, a reduced risk of cervical cancer in their current female partners

Quality of Life Changes in Filipino Cancer Patients from Baseline to One Year after Diagnosis:a Country-specific Analysis of the ACTION Study

Background: Health-related quality of life is an important aspect of cancer research. Studies in the Philippines documenting this among survivors are limited in scope and number. Objective: To document quality of life indicators of Filipino cancer survivors starting at 12 months from diagnosis and identify predictors of these changes. Methods: The ACTION study is a prospective longitudinal study examining the economic and health impact of cancer in the Southeast Asian Region. A country-specific analysis for Filipino patients was conducted. Results: Of the 909 Filipinos included in the study, 462 survived month 12 and had health-related quality of life (HRQoL) data. HRQoL data showed significant improvement from baseline (0.73, SD: 0.15) to month 12 (0.79, SD: 0.24) as measured by the EQ-5D weight score. Similar trends were seen in the EQ5D VAS Scores and the QLQ30 Global function scores. There was, however, an increase in the proportion of respondents experiencing significant problems related to EQ5D domains by month 12. Data disaggregated according to cancer type showed a decrease in QLQ30 GF scores from baseline to month 12 for all types except breast cancer. Individuals at risk of anxiety and depression increased from 15.37% to 25.54% and 18.83% to 32.25%, respectively. Predictors of worsening HRQOL include experiencing economic hardship, progression of disease, and higher stage at baseline. Conclusion: HRQOL scores were found to increase despite experiencing more difficulties in function among Filipino cancer survivors one year after diagnosis

Chromosomal aberrations among Filipino health workers at the chemotherapy oncology wards/ clinics of a tertiary government hospital

Introduction. Chromosomal mutations are causal events in neoplasia development. Biomarker cytogenetic assays can determine exposure to mutagenic agents in occupational settings. This study assessed early biological marker chromosomal aberrations among health workers in the chemotherapy oncology wards/ clinics, exploring its association to the subjects\u27 occupational, environmental and baseline profile. Methods. This was an IRB approved cross-sectional exploratory study among hospital personnel working in the chemotherapy oncology facility of a tertiary government hospital, who underwent structured interview and blood extraction for cytogenetic assay after informed consent. Study funds only permitted assay of 44 specimens of 144 planned sample size, hence, Stata 6.0 only analyzed data from 44 subjects. Results. All 44 subjects had varying exposure to chemotherapy drug infusions. Of these, 79% had 1.0 breaks per cell (hypersensitive). Predominantly chromatid breaks (CTB), chromatid gaps (CTG), sister chromatid exchanges (SCE) were seen. No significant association was shown between mutagenic sensitivity and baseline characteristics, but with small sample size. Conclusion. 21% borderline to hypersensitive mutagenic sensitivity among oncology workers at the tertiary government hospital is relatively significant, despite small sample size, connoting a must preventive promotive practice of chemotherapy administration in the workplace

Prevalence and determinants of human papillomavirus genital infection in men

Four-hundred-forty-five husbands of women with invasive cervical carcinoma, 165 of women with in situ cervical cancer, and 717 of control women (age range 19-82 years) were interviewed and a sample of exfoliated cells from the penis obtained in seven case-control studies conducted by the International Agency for Research on Cancer. The characteristics of human papillomavirus-positive and human papillomavirus-negative husbands were compared using odds ratios and 95% confidence intervals. Thirteen per cent of the husbands of control women, 18% of the husbands of women with invasive cervical carcinoma, and 21% of the husbands of in situ cervical carcinoma women were positive for penile human papillomavirus DNA. Human papillomavirus 16 was detected in 45 husbands, human papillomavirus 18, 31 or 33 in 19, and human papillomavirus 6/11 in 6, but the majority of human papillomavirus infection (158) was with other or unspecified human papillomavirus types. The same human papillomavirus type was seldom identified in both husband and wife. The strongest variation in penile human papillomavirus infection was by country, with percentages among the husbands of control women ranging between 3% in Spain and 39% in Brazil. Having had over 50 lifetime sexual partners, compared with only one, was associated with an odds ratio of 2.3

Male circumcision, penile human papillomavirus infection, and cervical cancer in female partners

Background: It is uncertain whether male circumcision reduces the risks of penile human papillomavirus (HPV) infection in the man and of cervical cancer in his female partner. Methods: We pooled data on 1913 couples enrolled in one of seven case-control studies of cervical carcinoma in situ and cervical cancer in five countries. Circumcision status was self-reported, and the accuracy of the data was confirmed by physical examination at three study sites. The presence or absence of penile HPV DNA was assessed by a polymerase-chain-reaction assay in 1520 men and yielded a valid result in the case of 1139 men (74.9 percent). Results: Penile HPV was detected in 166 of the 847 uncircumcised men (19.6 percent) and in 16 of the 292 circumcised men (5.5 percent). After adjustment for age at first intercourse, lifetime number of sexual partners, and other potential confounders, circumcised men were less likely than uncircumcised men to have HPV infection (odds ratio, 0.37; 95 percent confidence interval, 0.16 to 0.85). Monogamous women whose male partners had six or more sexual partners and were circumcised had a lower risk of cervical cancer than women whose partners were uncircumcised (adjusted odds ratio, 0.42; 95 percent confidence interval, 0.23 to 0.79). Results were similar in the subgroup of men in whom circumcision was confirmed by medical examination. Conclusions: Male circumcision is associated with a reduced risk of penile HPV infection and, in the case of men with a history of multiple sexual partners, a reduced risk of cervical cancer in their current female partners