Ryan K A, Zekeng L, Roddy R E, Weir S S
Family Health International, Durham, NC, USA.
Int J STD AIDS. 1998 Jul;9(7):403-7. doi: 10.1258/0956462981922494.
The aim of the study was to determine the prevalence of sexually transmitted diseases (STDs), describe the frequency of genitourinary symptoms and signs, and to assess the accuracy of clinical diagnoses of STD in a cohort of Cameroonian sex workers. Physical examinations were conducted on 1233 sex workers in Yaoundé and Douala, Cameroon. Symptoms experienced within the 14 days prior to examination were collected. Women were tested for gonorrhoea, chlamydia infection, and trichomoniasis. Doctors' clinical impressions were compared with laboratory tests. Prevalence of cervical infection and trichomoniasis was 20%. A high percentage of abnormal signs and symptoms was found in this cohort. Clinical diagnosis for cervicitis and trichomoniasis had low sensitivities (<50%) while specificity remained high (>65%). In conclusion STDs are common among sex workers in Cameroon. Clinical diagnosis was not an accurate predictor of infection at the individual level in this population at risk of STD.
该研究的目的是确定喀麦隆性工作者中性传播疾病（STD）的患病率，描述泌尿生殖系统症状和体征的发生频率，并评估对一组喀麦隆性工作者进行性传播疾病临床诊断的准确性。对喀麦隆雅温得和杜阿拉的1233名性工作者进行了体格检查。收集了检查前14天内出现的症状。对女性进行了淋病、衣原体感染和滴虫病检测。将医生的临床诊断与实验室检测结果进行了比较。宫颈感染和滴虫病的患病率为20%。在这组人群中发现了高比例的异常体征和症状。宫颈炎和滴虫病的临床诊断敏感性较低（<50%），而特异性仍然较高（>65%）。总之，性传播疾病在喀麦隆性工作者中很常见。在这个有性传播疾病风险的人群中，临床诊断在个体层面上并不是感染的准确预测指标。
