Prevalence of hypertension among urban residents in Mongolian region of Hulunbeier / 中华健康管理学杂志

Objective To investigate the prevalence of hypertension among adult residents in Mongolian region of Hulunbeier. Methods A total of 1536 adult residents were selected by using cluster sampling method, and 1496 completed the questionnaire survey. Blood pressure was measured for each participant. Results The prevalence of hypertension was 31.1%. Higher prevalence of hypertension was found in male ( 42. 0% vs 24. 5%, P ＜ 0. 05 ) and the elderly. No statistically significant difference of prevalence of hypertension was investigated in different nationalities (P ＞ O. 05 ). Conclusion The prevalence of hypertension among adult residents in Mongolian region of Hulunbeier is relatively higher.

Study on the relationship between the opacity of lens and the levels of 2, 6-dinitro-4-amino-toluene (DNAT) in the urine of workers exposed to trinitrotoluene(TNT) / 中华劳动卫生职业病杂志

<p><b>OBJECTIVE</b>To find out the relationship between the opacity in lens and the contents of 2,6-dinitro-4-amino-toluene(DNAT) in the urine of exposed workers.</p><p><b>METHODS</b>Testing the exposed worker's lens and measuring the contents of DNAT in the urine after work.</p><p><b>RESULTS</b>When the opacity of the lens occurred, the contents of DNAT in the urine(2.38 mg/L) of workers exposed to TNT were significantly higher than those without opacity in lens(1.44 mg/L) (P < 0.05).</p><p><b>CONCLUSION</b>The severity of opacity of lens increased with the contents of DNAT raised in the urine. The threshold value suggested by ILO is not applicable to Chinese occupational population, which recommends the contents of DNAT(30 mg/L) in the urine for the workers exposed to TNT as biological occupational exposed limits.</p>