Familial aggregation of blood pressure, weight and height among sibling pairs at school entry.
Aggregation of blood pressure among sibling pairs of the same age and sex was studied. The children were of a restricted age group, 6-7 year olds, who entered school between 1976 and 1980 in a Western Neighborhood of Jerusalem. The mean systolic blood pressure (SBP) was 98.8 mmHg (SD 10.2), for the first sib of the pair and 97.3 mmHg (SD 9.7), for the second sib of the pair and the mean diastolic blood pressure (DBP) was 63.0 mmHg (SD 9.6) and 60.1 mmHg (SD 9.2), respectively. The Pearson correlation coefficient for SBP was 0.18 (p less than 0.05) and for DBP 0.12 (p less than 0.05), for weight 0.46 (p = 0.001) and for height 0.46 (p = 0.001). Pearson's and intraclass correlations and regression coefficients were calculated. Comparison with other studies was made. The degree of the correlation was found to differ among the various studies. The lowest correlations were those of the present study. The factors affecting the strength of the correlations are discussed.
D001794:Blood Pressure; D001827:Body Height; D001835:Body Weight; D002648:Child; D005190:Family; D005260:Female; D006801:Humans; D007557:Israel; D008297:Male; D013223:Statistics as Topic