Table 3.
Zinc serum level and zinc deficiency during the pre- and postoperative period and in different groups of BMI, sex, and underlying diseases
| Zinc serum level (μg/dl), mean (SD) | P-value | Zinc deficiency, n (%) | P-value | |
|---|---|---|---|---|
| Preoperative | 89.96 (21.04) a | < 0.001 | 42 (10.2) | – |
| At 3 months | 89.99 (26.35) b | 67 (16.2) | ||
| At 6 months | 79.16 (18.39) a b | 119 (28.8) | ||
| At 12 months | 80.07 (17.92) a b | 112 (27.1) | ||
| Group variables | ||||
| BMI | 0.044 | 0.372 | ||
| 35 ≤ BMI < 40 (n = 44) | 95.79 (33.92) | 4 (9.1) | ||
| 40 ≤ BMI ≤ 50 (n = 277) | 87.97 (18.06)a | 32 (11.6) | ||
| BMI > 50 (n = 92) | 93.16 (20.77)a | 6 (6.5) | ||
| Sex | 0.038 | 0.029 | ||
| Female (n = 344) | 89.43 (21.99) | 40 (11.6) | ||
| Male (n = 69) | 92.58 (15.28) | 2 (2.9) | ||
| HTN | 0.210 | 0.689 | ||
| Yes (n = 79) | 87.37 (18.11) | 9 (11.4) | ||
| No (n = 334) | 90.57 (21.65) | 33 (9.9) | ||
| Impaired FBS | 0.227 | 0.027 | ||
| Yes (n = 76) | 87.70 (22.12) | 13 (17.1) | ||
| No (n = 337) | 90.47 (20.78) | 29 (8.6) | ||
| DM Type II | 0.503 | 0.047 | ||
| Yes (n = 76) | 92.25 (26.10) | 3 (3.9) | ||
| No (n = 337) | 89.44 (19.73) | 39 (11.6) | ||
| Hyperlipidemia | 0.584 | 0.308 | ||
| Yes (n = 188) | 90.78 (22.50) | 16 (8.5) | ||
| No (n = 225) | 89.27 (19.75) | 26 (11.6) | ||
| Hypothyroidism | 0.861 | 0.376 | ||
| Yes (n = 91) | 90.42 (20.95) | 7 (7.7) | ||
| No (n = 322) | 89.83 (21.09) | 35 (10.9) | ||
Abbreviations: BMI Body mass index, HTN Hypertension, FBS Fasting blood sugar, DM Diabetes mellitus, SD Standard deviation
a, and b indicate differences between groups