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Table 1 Patient demographic data

From: Cardiothoracic ratio measurement using artificial intelligence: observer and method validation studies

  Normal group Cardiomegaly group
Number of patients 4,933 2,419
Gender   
Male 1,431 (29%) 6,75 (28%)
Female 3,502 (71%) 1,744 (72%)
Mean age (years) 42.5 ± 14.8 64.2 ± 14.0
Age   
 < 18 33 (0.7%) 0 (0%)
18–35 1,771 (35.9%) 87 (3.6%)
36–50 1,562 (31.7%) 300 (12.4%)
51–65 1,225 (24.8%) 831 (34.3%)
66–80 329 (6.7%) 926 (38.3%)
 > 80 13 (0.2%) 275 (11.4%)
CTR value 0.454 ± 0.043 0.569 ± 0.047