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Table 1 Data summarized as mean ± standard deviation

From: Impact of sex and advancing age on left atrial volume and shape: the Framingham heart study

Age Group <55 y 55-64 y 65-74 y ≥75 y P for trend
Men: N 63 106 45 14  
LA volume, ml 76 ± 20 76 ± 23 76 ± 24 69 ± 21 0.46
LA vol/BSA, ml/m2 37 ± 10 38 ± 11 39 ± 12 36 ± 11 0.94
LA shape index (SI) 1.81 ± 0.35 1.71 ± 0.23 1.70 ± 0.28 1.57 ± 0.26 0.005
Women: N 78 179 89 31  
LA volume, ml 65 ± 18 63 ± 17 62 ± 22 55 ± 16 0.016
LA vol/BSA, ml/m2 38 ± 11 37 ± 10 37 ± 14 34 ± 10 0.17
LA shape index (SI) 1.88 ± 0.27 1.83 ± 0.32 1.77 ± 0.30 1.75 ± 0.30 0.007