Table 2 mantel Haenszel χ2 test of UIC and goiter
From: The relationship of different levels of high iodine and goiter in school children: a meta-analysis
| UIC (μg/l) | Goiter | Not goiter | χ2 | P |
|---|---|---|---|---|
| 100–300 | 3405 | 53,918 | 734.605 | < 0.001 |
| 300–500 | 2499 | 24,157 | ||
| 500–800 | 1381 | 11,732 | ||
| 800––1000 | 182 | 1116 | ||
| ≥ 1000 | 310 | 1606 |