Table 2.
Mean (SD) of neck circumference according to overweight, general and abdominal obesity in Iranian children and adolescents by age and sex: the CASPIAN-IV Study
| Age (year)-sex group | Overweight |
General obesity |
Abdominal obesity |
||||||
|---|---|---|---|---|---|---|---|---|---|
| Yes | No | p Value | Yes | No | p Value | Yes | No | p Value | |
| Age group—boys | |||||||||
| 7 | 28.2 (27.7, 28.7) | 26.5 (26.3, 26.7) | <0.001 | 28.7 (28.1, 29.4) | 26.5 (26.3, 26.7) | <0.001 | 28.0 (27.4, 28.6) | 26.4 (26.2, 26.6) | <0.001 |
| 8 | 28.6 (28.2, 29.0) | 27.3 (26.8, 27.8) | 0.06 | 28.8 (28.2, 29.5) | 27.3 (26.8, 27.7) | 0.04 | 28.6 (28.2, 28.9) | 27.2 (26.6, 27.7) | 0.01 |
| 9 | 28.8 (28.1, 29.4) | 27.7 (27.3, 28.0) | 0.05 | 31.1 (29.4, 32.7) | 27.5 (27.2, 27.8) | <0.001 | 29.9 (28.9, 31.1) | 27.3 (27.0, 27.7) | <0.001 |
| 10 | 29.9 (29.4, 30.3) | 28.0 (27.8, 28.3) | <0.001 | 30.9 (30.1, 31.6) | 28.0 (27.7, 28.2) | <0.001 | 30.3 (29.8, 30.8) | 27.8 (27.6, 28.0) | <0.001 |
| 11 | 30.6 (30.3, 31.0) | 28.8 (28.6, 28.9) | <0.001 | 33.4 (32.7, 34.0) | 28.5 (28.4, 28.7) | <0.001 | 31.7 (31.3, 32.2) | 28.4 (28.2, 28.5) | <0.001 |
| 12 | 31.6 (31.3, 32.0) | 29.5 (29.3, 29.7) | <0.001 | 33.4 (32.9, 34.0) | 29.4 (29.2, 29.6) | <0.001 | 32.3 (31.9, 32.7) | 29.0 (28.9, 29.2) | <0.001 |
| 13 | 33.1 (32.0, 34.1) | 30.5 (30.2, 30.8) | <0.001 | 34.2 (33.2, 35.3) | 30.6 (30.3, 30.9) | <0.001 | 33.2 (32.4, 34.0) | 30.1 (29.8, 30.4) | <0.001 |
| 14 | 32.9 (32.2, 33.5) | 31.4 (31.1, 31.6) | <0.001 | 34.6 (33.7, 35.5) | 31.3 (31.1, 31.6) | <0.001 | 33.3 (32.8, 33.8) | 31.0 (30.8, 31.2) | <0.001 |
| 15 | 34.6 (34.1, 35.1) | 32.6 (32.3, 33.0) | <0.001 | 37.0 (36.1, 37.8) | 32.6 (32.3, 33.0) | <0.001 | 35.5 (35.0, 36.0) | 32.4 (32.0, 32.7) | <0.001 |
| 16 | 37.0 (36.0, 38.1) | 33.9 (33.7, 34.1) | <0.001 | 39.0 (38.1, 39.9) | 34.1 (33.9, 34.3) | <0.001 | 37.4 (36.7, 38.1) | 33.7 (33.5, 34.0) | <0.001 |
| 17 | 36.5 (35.7, 37.3) | 35.3 (34.5, 36.1) | 0.26 | 39.1 (38.4, 39.8) | 35.2 (34.4, 35.9) | <0.001 | 38.5 (37.5, 39.5) | 34.9 (34.1, 35.7) | <0.001 |
| 18 | 36.9 (35.8, 37.9) | 35.7 (35.3, 36.1) | 0.04 | 39.3 (38.3, 40.4) | 35.6 (35.3, 36.0) | <0.001 | 38.5 (37.5, 39.4) | 35.3 (34.9, 35.7) | <0.001 |
| 7–10 | 28.8 (28.6, 29.1) | 27.4 (27.2, 27.6) | <0.001 | 29.8 (29.3, 30.3) | 27.3 (27.1, 27.5) | <0.001 | 29.1 (28.8, 29.5) | 27.2 (27.0, 27.4) | <0.001 |
| 10–14 | 32.0 (31.6, 32.4) | 29.9 (29.8, 30.0) | <0.001 | 33.8 (33.4, 34.2) | 29.9 (29.7, 30.0) | <0.001 | 32.6 (32.3, 32.9) | 29.5 (29.4, 29.6) | <0.001 |
| 14–18 | 36.20 (35.7, 36.6) | 34.3 (34.0, 34.5) | <0.001 | 38.5 (38.1, 39.0) | 34.3 (34.0, 34.5) | <0.001 | 37.3 (36.9, 37.70 | 34.0 (33.7, 34.2) | <0.001 |
| Age group—girls | |||||||||
| 7 | 26.7 (26.1, 27.4) | 25.7 (25.5, 26.0) | <0.001 | 28.9 (27.9, 29.9) | 25.7 (25.5, 25.9) | <0.001 | 26.7 (26.1, 27.3) | 25.7 (25.5, 25.9) | <0.001 |
| 8 | 27.2 (26.5, 27.9) | 26.7 (26.1, 27.3) | 0.62 | 29.4 (25.6, 33.3) | 26.6 (26.0, 27.1) | 0.01 | 29.1 (27.6, 30.6) | 26.3 (25.7, 26.9) | <0.001 |
| 9 | 29.9 (28.5, 31.4) | 27.0 (26.8, 27.2) | <0.001 | 29.6 (28.6, 30.6) | 27.3 (27.0, 27.5) | <0.001 | 29.8 (28.6, 31.0) | 26.9 (26.7, 27.1) | <0.001 |
| 10 | 29.7 (29.1, 30.4) | 27.7 (27.4, 28.1) | <0.001 | 31.8 (31.1, 32.4) | 27.7 (27.4, 28.0) | <0.001 | 30.2 (29.6, 30.8 | 27.5 (27.2, 27.9) | <0.001 |
| 11 | 31.3 (30.0, 32.6) | 28.2 (28.0, 28.5) | <0.001 | 32.5 (31.4, 33.6) | 28.5 (28.2, 28.7) | <0.001 | 31.7 (30.4, 33.1) | 28.2 (28.0, 28.4) | <0.001 |
| 12 | 31.3 (30.8, 31.8) | 29.4 (29.0, 29.8) | <0.001 | 33.8 (30.3, 37.2) | 29.4 (29.1, 29.7) | <0.001 | 32.1 (30.8, 33.4) | 29.2 (28.9, 29.5) | <0.001 |
| 13 | 32.4 (31.9, 32.9) | 30.7 (30.3, 31.2) | 0.002 | 33.6 (32.8, 34.3) | 30.8 (30.4, 31.2) | 0.002 | 33.8 (32.5, 35.1) | 30.4 (30.0, 30.7) | 0.002 |
| 14 | 33.4 (32.6, 34.3) | 30.9 (30.7, 31.1) | <0.001 | 34.7 (34.1, 35.4) | 30.9 (30.7, 31.1) | <0.001 | 34.0 (33.2, 34.8) | 30.7 (30.5, 30.9) | <0.001 |
| 15 | 33.4 (32.9, 33.8) | 31.6 (31.3, 31.9) | <0.001 | 36.2 (34.3, 38.0) | 31.6 (31.4, 31.9) | <0.001 | 34.4 (33.6, 35.1) | 31.4 (31.2, 31.6) | <0.001 |
| 16 | 34.2 (33.6, 34.9) | 31.8 (31.6, 32.0) | <0.001 | 36.4 (35.7, 37.1) | 32.0 (31.8, 32.2) | <0.001 | 35.0 (34.3, 35.7) | 31.6 (31.4, 31.8) | <0.001 |
| 17 | 34.3 (33.8, 34.8) | 32.2 (31.9, 32.6) | <0.001 | 36.1 (33.0, 39.2) | 32.3 (32.0, 32.6) | <0.001 | 35.1 (33.7,)36.5 | 31.8 (31.6, 32.0) | <0.001 |
| 18 | 35.16 (33.9, 36.4) | 32.3 (32.0, 32.6) | <0.001 | 35.2 (34.2, 36.3) | 32.5 (32.2, 32.9) | <0.001 | 34.8 (33.84, 35.7) | 32.1 (31.8, 32.47) | <0.001 |
| 7–10 | 28.8 (28.2, 29.3) | 26.9 (26.6, 27.1) | <0.001 | 30.1 (29.0, 31.3) | 26.9 (26.7, 27.1) | <0.001 | 29.3 (28.7, 29.9) | 26.7 (26.5, 26.9) | <0.001 |
| 10–14 | 32.1 (31.8, 32.5) | 29.9 (29.7, 30.0) | <0.001 | 33.8 (32.9, 34.6) | 29.9 (29.8, 30.1) | <0.001 | 33.0 (32.4, 33.7) | 29.7 (29.5, 29.8) | <0.001 |
| 14–18 | 34.1 (33.8, 34.5) | 32.0 (31.8, 32.1) | <0.001 | 36.0 (35.1, 37.0) | 32.0 (31.9, 32.2) | <0.001 | 34.8 (34.3, 35.3) | 31.7 (31.6, 31.8) | <0.001 |