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Table 2 Age-adjusted means (95 % CI) of four measurements of obesity according to number of parity

From: Association between parity and obesity patterns in a middle-aged and older Chinese population: a cross-sectional analysis in the Tongji-Dongfeng cohort study

Measurement Parity P for trend
1 (n = 4362) 2 (n = 4410) 3 (n = 2543) ≥4 (n = 1514)
BMI (kg/m2) 23.79 (23.66, 23.92) 24.47 (24.36, 24.57) 25.18 (25.03, 25.34) 25.18 (24.96, 25.40) <0.001
WC (cm) 80.79 (80.45, 81.12) 82.80 (82.52, 83.08) 84.30 (83.90, 84.70) 85.03 (84.45, 85.60) <0.001
WHtR 0.520 (0.518, 0.522) 0.534 (0.532, 0.535) 0.545 (0.542, 0.547) 0.551 (0.547, 0.555) <0.001
WHR 0.857 (0.855, 0.859) 0.868 (0.866, 0.870) 0.875 (0.872, 0.878) 0.882 (0.878, 0.886) <0.001
  1. Abbreviations: BMI body mass index, WC waist circumference, WHtR waist-to-height ratio, WHR waist-to-hip ratio