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Table 2 Numbers and Percentages of subjects with high blood pressure (> 135 mmHg) according to their birth weight and current body weight

From: Simpson's Paradox, Lord's Paradox, and Suppression Effects are the same phenomenon – the reversal paradox

  Normal BP High BP Total Percentage of subjects with high BP
Overall:     
Low birth weight 354 132 486 27.2%
High birth weight 328 186 514 36.2%
Total 682 318 1,000 31.8%
Current weight < = 90 Kg     
Low birth weight 329 99 428 23.1%
High birth weight 221 55 276 19.9%
Total 550 154 704 21.9%
Current weight > 90 Kg     
Low birth weight 25 33 58 56.9%
High birth weight 107 131 238 55.0%
Total 132 164 296 55.4%