Table 2. Distribution of Underweight (Weight-for-Age) in Three Studies Based on Gender a.
| Study Year | Weight-for-Age (Z-Score) b | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fars-Native | Turkman | Sistani | Total | |||||||||
| < -3 SD | -2 SD to ≤ 3 SD | > -2 SD | < -3 SD | -2 SD to ≤ 3 SD | > -2 SD | < -3 SD | -2 SD to ≤ 3 SD | > -2 SD | < -3 SD | -2 SD to ≤ 3 SD | > -2 SD | |
| Male | ||||||||||||
| 1998 (1161) | 2 (0.9) | 11 (4.9) | 211 (94.2) | 2 (0.4) | 17 (3.5) | 461 (96.1) | 8 (1.8) | 29 (6.3) | 420 (91.9) | 12 (1.0) | 57 (4.9) | 1092 (94.1) |
| 2004 (1429) | 1 (0.3) | 7 (2.2) | 313 (67.5) | 4 (0.7) | 8 (1.4) | 546 (97.9) | 2 (0.4) | 29 (5.3) | 519 (94.3) | 7 (0.5) | 44 (3.1) | 1378 (96.4) |
| 2013 (1262) | 4 (1.2) | 12 (3.6) | 315 (95.2) | 22 (4.2) | 20 (3.9) | 476 (91.9) | 9 (2.1) | 23 (5.3) | 399 (92.6) | 35 (2.7) | 55 (4.3) | 1190 (93.0) |
| P Value | 0.131 | 0.006 | 0.280 | 0.002 | ||||||||
| Female | ||||||||||||
| 1998 (1178) | 1 (0.4) | 6 (2.6) | 222 (97.0) | 5 (1.2) | 10 (2.3) | 414 (3.5) | 4 (0.8) | 39 7.5) | 477 (91.7) | 10 (0.8) | 55 (4.7) | 1113 (94.5) |
| 2004 (1320) | 2 (0.7) | 5 (1.8) | 274 (97.5) | 2 (0.4) | 10 (2.2) | 448 (97.4) | 8 (1.4) | 45 (7.8) | 526 (90.8) | 12 (0.9) | 60 (4.5) | 1248 (94.6) |
| 2013 (1207) | 4 (1.3) | 11 (3.7) | 284 (95.0) | 10 (2.1) | 18 (3.8) | 444 (94.1) | 8 (1.8) | 23 (5.3) | 405 (92.9) | 22 (1.8) | 52 (4.3) | 1133 (93.9) |
| P Value | 0.231 | 0.029 | 0.488 | 0.726 | ||||||||
| Total | ||||||||||||
| 1998 (2339) | 3 (0.7) | 17 (3.8) | 433 (95.5) | 7 (0.8) | 27 (3.0) | 875 (96.2) | 12 (1.2) | 68 (7.0) | 917 (91.8) | 22 (0.9) | 112 (4.8) | 2205 (94.3) |
| 2004 (2749) | 3 (0.5) | 12 (2.0) | 587 (97.5) | 6 (0.6) | 18 (1.8) | 994 (93.8) | 10 (0.9) | 74 (6.6) | 1045 (92.5) | 19 (0.7) | 104 (3.8) | 2626 (95.5) |
| 2013 (2487) | 8 (1.3) | 23 (3.7) | 599 (95.0) | 32(3.2) | 38(3.8) | 920 (93.0) | 17 (2.0) | 46 (5.3) | 804 (92.7) | 57 (2.3) | 107 (4.3) | 2323 (93.4) |
| P Value | 0.073 | 0.001 | 0.723 | 0.003 | ||||||||
a Chi-2 test was used between > -2 SD and others.
b Values are presented as No. (%).