Table 2 Number of clusters in the 22 municipal districts of Tehran.
From: The Tehran Eye Study: research design and eye examination protocol
District | Number of clusters | District | Number of clusters |
|---|---|---|---|
1 | 6 | 12 | 5 |
2 | 12 | 13 | 6 |
3 | 7 | 14 | 9 |
4 | 15 | 15 | 14 |
5 | 10 | 16 | 7 |
6 | 6 | 17 | 6 |
7 | 8 | 18 | 6 |
8 | 9 | 19 | 4 |
9 | 4 | 20 | 8 |
10 | 7 | 21 | 4 |
11 | 6 | 22 | 1 |