Table 3.
Intra- and inter-country comparisons of current mercury amalgam dental fillings.
| Respondents N | Median No. of Current Fillings | p | r | |
|---|---|---|---|---|
| Intra-country: Control vs. ALS | ||||
| USA control | 30 | 4.5 | 0.49 | 0.06 |
| USA ALS | 103 | 5.0 | ||
| Australia control | 270 | 5.0 | 0.42 | 0.04 |
| Australia ALS | 84 | 4.5 | ||
| Other countries control | 45 | 5.0 | 0.76 | 0.03 |
| Other countries ALS | 69 | 5.0 | ||
| Inter-country: USA vs. Australia | ||||
| USA control | 30 | 4.5 | 0.93 | 0.005 |
| Australia control | 270 | 5.0 | ||
| USA ALS | 103 | 5.0 | 0.80 | 0.02 |
| Australia ALS | 84 | 4.5 | ||
N: number, p: Mann-Whitney p value, r: effect size.