Oviasu V O, Okupa F E
J Epidemiol Community Health. 1979 Dec;33(4):274-8. doi: 10.1136/jech.33.4.274.
In cross-sectional surveys of arterial blood pressure carried out in rural and urban communities in the Bendel State of Nigeria, mean systolic and diastolic pressure was generally higher in urban than in rural subjects but the differences in particular age groups were statistically significant only in some of them. Two sample Student's t tests were carried out to compare the blood pressure of rural labourers, rural clerks, and urban clerks. It is not clear from our findings whether the differences in any particular age group between rural labourers and urban clerks should be attributed to occupation or to area of residence. However, the consistently intermediate values for rural clerks over the different age groups provides strong indirect evidence that both these factors are relevant.
在尼日利亚本德尔州城乡社区开展的动脉血压横断面调查中，城市受试者的平均收缩压和舒张压普遍高于农村受试者，但特定年龄组的差异仅在部分年龄组中具有统计学意义。进行了两组样本的学生t检验，以比较农村劳动者、农村职员和城市职员的血压。从我们的研究结果尚不清楚农村劳动者和城市职员在任何特定年龄组中的差异是应归因于职业还是居住地区。然而，农村职员在不同年龄组中始终处于中间值，这提供了有力的间接证据，表明这两个因素都有关系。
