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Table 8 Chi-square statistics of calculated sums of positive criteria – BN vs. PTC

From: Ultrasound criteria for risk stratification of thyroid nodules in the previously iodine deficient area of Austria - a single centre, retrospective analysis

BN vs. PTC

BN

PTC

Χ2

p-value

≥1 criterion

120/142 (85%)

42/45 (93%)

2.29850

0.12950

≥2 criteria

78/142 (55%)

40/45 (89%)

16.92502

0.00004

≥3 criteria

36/142 (25%)

29/45 (64%)

23.02780

0.000002

≥4 criteria

10/142 (7%)

19/45 (42%)

32.27589

0.00000001

5 criteria

2/142 (1%)

4/45 (9%)

6.15697

0.01309

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Thyroid Research

ISSN: 1756-6614