Table 3 Urinary iodine concentrations overall and stratified by sex in South Tajikistan, 2009
From: Iodine nutritional status and risk factors for goitre among schoolchildren in South Tajikistan
School nr | Boys |  |  | Girls |  |  | χ2 a | P-value | Total |  |  |
|---|---|---|---|---|---|---|---|---|---|---|---|
|  | < 50 μg/L | 50-99 μg/L | ≥100 μg/L | < 50 μg/L | 50-99 μg/L | ≥100 μg/L |  |  | < 50 μg/L | 50-99 μg/L | ≥100 μg/L |
1 (61) | 10 (28.6) | 13 (37.1) | 12 (34.3) | 11 (42.3) | 12 (46.2) | 3 (11.5) | NAb | 0.131 | 21 (34.3) | 25 (41.0) | 15 (24.6) |
2 (59) | 20 (57.1) | 12 (34.3) | 3 (8.6) | 16 (66.7) | 8 (33.3) | 0 | NAb | 0.407 | 36 (61.0) | 20 (33.9) | 3 (5.1) |
3 (59) | 10 (31.3) | 8 (25.0) | 14 (43.7) | 6 (22.2) | 10 (37.0) | 11 (40.7) | NAb | 0.537 | 16 (27.1) | 18 (30.5) | 25 (42.4) |
4 (63) | 27 (100.0) | 0 | 0 | 36 (100.0) | 0 | 0 | NAb | NA | 63 (100.0) | 0 | 0 |
5 (49) | 6 (31.6) | 8 (42.1) | 5 (26.3) | 9 (30.0) | 13 (43.3) | 8 (26.7) | NAb | 0.999 | 15 (30.6) | 21 (42.9) | 13 (26.5) |
6 (54) | 15 (50.0) | 10 (33.3) | 5 (16.7) | 13 (54.2) | 9 (37.5) | 2 (8.3) | NAb | 0.802 | 28 (51.9) | 19 (35.1) | 7 (13.0) |
7 (66) | 5 (15.6) | 18 (56.3) | 9 (28.1) | 15 (44.1) | 11 (32.4) | 8 (23.5) | NAb | 0.033 | 20 (30.3) | 29 (43.9) | 17 (25.8) |
8 (66) | 28 (87.5) | 3 (9.4) | 1 (3.1) | 31 (91.2) | 2 (5.9) | 1 (2.9) | NAb | 0.831 | 59 (89.4) | 5 (7.6) | 2 (3.0) |
9 (62) | 9 (23.7) | 27 (71.0) | 2 (5.3) | 15 (62.5) | 7 (29.2) | 2 (8.3) | NAb | 0.003 | 24 (38.7) | 34 (54.8) | 4 (6.5) |
10 (50) | 5 (20.8) | 8 (33.3) | 11 (45.8) | 5 (19.2) | 10 (38.5) | 11 (42.3) | NAb | 0.935 | 10 (20.0) | 18 (36.0) | 22 (44.0) |
Total (589) | 135 (44.4) | 107 (35.2) | 62 (20.4) | 157 (55.1) | 82 (28.8) | 46 (16.1) | 6.73 | 0.035 | 292 (49.6) | 189 (32.1) | 108 (18.3) |
95% CI | (38.7, 50.2) | (29.8, 40.9) | (16.0, 25.4) | (49.1, 61.0) | (23.6, 34.4) | (12.1, 20.9) | Â | Â | (45.5, 53.7) | (28.3, 36.0) | (15.3, 21.7) |