Table 2.
Hematological parameters and C reactive protein and their association with body mass index z-score groups among adolescents in northern and eastern Sudan, 2022-2023 (n = 738)
| Variable | Normal (n = 492) | Underweight (n = 151) | Overweight/obese (n = 95) | P value | Adjusted P value | |
|---|---|---|---|---|---|---|
| Median (interquartile range) | ||||||
| Age, years | 14.9 (13.1-16.4) | 14.2 (12.7-15.8) | 14.9 (13.8-16.4) | 0.167 | ||
| C reactive protein mg/L | 2.50 (2.50-3.06) | 2.50 (2.50-3.06) | 2.50 (2.50-3.07) | 0.154 | ||
| White blood cell ×103/mm3 | 5.9 (4.9-7.3) | 6.0 (5.0-7.4) | 6.7 (5.0-8.1) | 0.018 | Normal vs. underweight = 0.999 | |
| Normal vs. overweight/obese = 0.021 | ||||||
| Underweight vs. overweight/obese = 0.154 | ||||||
| Haemoglobin g/dl | 12.8 (12.0-13.7) | 13.1 (12.4-13.7) | 13.2 (12.4-14.2) | 0.001 | Normal vs. underweight = 0.033 | |
| Normal vs. overweight/obese = 0.007 | ||||||
| Underweight vs. overweight/obese = 0.736 | ||||||
| Mean platelet volume fL | 9.0 (8.4-9.8) | 9.0 (8.5-9.8) | 9.1 (8.2-10.0) | 0.830 | ||
| Frequency (percentage) | ||||||
| Sex | 183 (37.2) | 93 (61.6) | 49 (51.6) | |||
| 309 (62.8) | 58 (38.4) | 46 (48.4) | < 0.001 | |||
| Cigarette smoking/tobacco use | 482 (98.0) | 146 (96.7) | 93 (97.9) | |||
| 10 (2.0) | 5 (3.3) | 2 (2.1) | 0.655 | |||