Table 2. Characteristics of AH1N1 Cases and Control study groups (Control I and II).
| Variable | AH1N1 | Controls–I | Controls-II |
|---|---|---|---|
| Female sex-number/total No. (%) | 14/40 (35%) | 12/30 (40%) | 21/64 (32.8%) |
| Age (years) | |||
| Mean (±SD) | 41.34 ± 12.6 | 44.2 ± 7.97 | 32.46±10.64 |
| Range | 19–55 | 20–55 | 20–55 |
| Median/IQR | 44/26 | 46/12 | 31/16 |
| Segregated (%) | |||
| 19–30 yr. | 15 (37.5%) | 4 (13%) | 35 (54.7%) |
| 31–45 yr. | 10 (25%) | 8 (27%) | 21 (32.8%) |
| 46–55 yr. | 15 (37.5%) | 18 (60%) | 8 (12.5%) |
| Smokers1 -number/total number (%) | 23 (57%) | 11 (37%) | 23 (36%) |
| Vaccinations | |||
| Influenza AH1N1/pneumococcal | 0/40 (0%) | 0/30(0%) | 1/64 (1.5%) |
| Body Mass Index-number/total No. (%) | |||
| < 25 | 14/40 (35%) | ||
| 25–29.9 | 13/40 (32.5%) | 25–30 (100%) | 25–30 (100%) |
| 30–39.9 (II) | 11/40 (27.5%) | ||
| Morbid (III) | 02/40 (5%) | ||
| Laboratory findings-median (range) | |||
| Lactase dehydrogenase-U/liter | 884 (511-1585) | 410 | 362 |
| Lymphocyte count – per mm3 | 801 (350–2600) | >1000/mm3 | >1000/mm3 |
| Hemoglobin - g dL-1 | 13.8 | 13.9 | 14.4 |
| Hematocrit - % | 39.07 | 39.4 | 42.09 |
| Pre-existing conditions-number/total No. (%) | |||
| Diabetes Mellitus (type 2) | 2/40 (5%) | None | None |
| Asthma | 1/40 (2.5%) | 1/30 | None |
| CPOD | 1/40 (2.5%) | None | None |
| Abnormal laboratory findings-number/total No. (%) | |||
| Only AH1N1 cases | |||
| Lactase dehydrogenase > 350 U/liter | 37/40 (92.5%) | ||
| Lymphocyte count <1000 per mm3 | 20/40 (50%) | ||
| Hemoglobin ≤ 12 g dL−1 | 15/40 (38%) | ||
| Hematocrit (38%–52%) | 8/40 (20%) |
1History of current smoking is referred to smoking less than 10 cigarettes a day which is known as light-to-moderate smoking.