Objective The rate of infertility continues to be on the increase in the developing
world. Similarly, the rates of blood-borne viral infections (BBVs) such as
Human Immunodeficiency Virus (HIV), Hepatitis B virus (HBV) and Hepatitis C
virus (HCV) are also on this rise. In 2014, the World Health Organization
(WHO) quoted prevalences of 1.5% (HIV), 15% (HBV) 1.3 - 8.4% (HCV) in the
Ghanaian general population. It has been reported that BBVs can adversely
affect male fertility, specifically sperm count and progressive motility.
The aim of this study was to evaluate the prevalence of BBVs in people with
infertility attending an IVF clinic and whether or not BBVs impacted on
sperm parameters.Methods A retrospective cohort study at a private fertility center in Accra, Ghana.
We had 229 recruited couples assayed for HBV, HCV and HIV. Sperm parameters
of the male partners were also assessed. The analysis performed included
student t-test and Fisher's exact test.Results We found prevalence rates of 1.7% (HIV), 7.9% (HBV) and 0.4% (HCV), which is
similar to what has already been reported in the Ghanaian community. There
was no significant difference between BBV positive and negative subjects for
sperm count (13.6 million/ml vs. 17.7 million/ml, P =
0.0599), percentage of progressive motility (26% vs. 30%, P
= 0.2129), percentage of normal forms (3% vs. 3%, P =
0.0617) and clinical pregnancy rates per embryo transfer (36.1% vs 34.9%,
P = 0.5) between BBV positive and BBV negative
subjects, respectively. Conclusion There is a similar prevalence of BBVs in sub-fertile couples and the general
Ghanaian population. However, no detrimental effect has been reported for
sperm parameters on grounds of BBV infectivity of the male partner.
PURPOSE
Previous studies assessing racial and ethnic differences in ovarian cancer (OVCA) diagnosis stage fail to present subtype-specific results and provide historic data on cases diagnosed between ten and twenty years ago. The purpose of this analysis is to assess non-Hispanic Black (NHB) and non-Hispanic White (NHW) differences in late stage diagnosis including; 1) factors associated with late-stage diagnosis of invasive epithelial OVCA overall and by histologic subtypes 2) potential changes across time, and, 3) current patterns of trends in a national cancer registry in the US and Puerto Rico between 1998 and 2011.
METHODS
NHB and NHW OVCA cases were derived from the National Cancer Database (NCDB). Diagnosis stage was analyzed as a dichotomous and a four-level category variable, respectively; early (stages I and II; localized) versus late (stages III and IV; regional and distant) and stages I, II, III and IV. Diagnosis period was trichotomized (1998–2002, 2003–2007, 2008–2011). Racial differences in stage were tested using Chi-square statistics. Odds ratios (OR) and 95% confidence intervals (95%CI) were estimated using multivariable binomial and generalized ordered logistic regressions. Interactions between race and diagnosis period were evaluated.
RESULTS
Between 1998 and 2011, 11,562 (7.8%) NHB and 137,106 (92.2%) NHW were diagnosed with OVCA. In adjusted models, NHB were significantly more likely diagnosed with late-stage OVCA than NHW (ORadj=1.26; 95%CI 1.19–1.33). Interaction between race and diagnosis period was marginally significant (pvalue=0.09), with racial differences in stage decreasing over time (1998–2002: ORadj= 1.36, 95%CI= 1.23–1.49; 2003–2007: ORadj= 1.27, 95%CI= 1.15–1.39; 2008–2011; ORadj =1.15, 95%CI= 1.05–1.27). NHB were also more likely to be diagnosed with stage 4 high grade serous (ORadj=1.46; 95%CI 1.22–1.74), clear cell (ORadj=2.71; 95%CI 1.94 – 3.79) and mucinous (ORadj=2.78; 95%CI 2.24 – 3.46) carcinomas than NHW.
CONCLUSIONS
Racial differences in late-stage OVCA diagnosis exist; however, these differences are decreasing with time. Within NCDB, NHB are significantly more likely diagnosed with late-stage OVCA and more specifically high-grade serous, clear cell and mucinous carcinomas than NHW.
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