Osmotic fragility test (OFT) and dichlorophenol indophenol precipitation (DCIP) test results for thalassemia screening of pregnant Lahu women receiving antenatal care between January 2011 and June 2012
| Charcteristic | n | % |
|---|---|---|
| Total | 368 | 100.00 |
| Age (years) | ||
| ≤20 | 149 | 40.5 |
| 21–30 | 161 | 43.8 |
| 31–40 | 50 | 13.6 |
| ≥40 | 8 | 2.1 |
| min = 13 y, max = 46 y, mean = 23.23 y, SD = 6.83 y | ||
| Gravidity | ||
| 1 | 162 | 68.5 |
| ≥2 | 75 | 31.5 |
| Mean corpuscular volume | ||
| Abnormal (<80 fL) | 58 | 17.6 |
| Normal (80–100 fL) | 271 | 82.4 |
| Hematocrit | ||
| Abnormal (<33%) | 94 | 29.1 |
| Normal (≥33%) | 230 | 70.9 |
| OFT | ||
| Positive | 87 | 23.6 |
| Negative | 274 | 74.5 |
| Unknown | 1.9 | |
| DCIP test | ||
| Positive | 18 | 5.0 |
| Negative | 342 | 95.0 |
Osmotic fragility test (OFT) and dichlorophenol indophenol precipitation (DCIP) test for thalassemia screening of the husbands of pregnant women who were found positive for either or both of OFT and DCIP tests between January 2011 and June 2012
| Charcateristic | n | % |
|---|---|---|
| Total | 83 | 100 |
| Age (years) | ||
| ≤2 0 | 7 | 19 |
| 21–30 | 20 | 56 |
| 31–40 | 7 | 19 |
| ≥4 0 | 2 | 6 |
| MCV | ||
| Abnormal (<80 fL) | 8 | 17 |
| Normal (80-100 fL) | 40 | 83 |
| OFT | ||
| Positive | 8 | 10 |
| Negative | 75 | 90 |
| DCIP test | ||
| Positive | 2 | 3 |
| Negative | 81 | 97 |
Thalassemia identification by HPLC and PCR techniques
| Charcateristic | n | % |
|---|---|---|
| Total | 116 | 100 |
| Osmotic fragility test | ||
| Positive | 38 | 33 |
| Negative | 78 | 67 |
| Dichlorophenol indophenol precipitation test | ||
| Positive | 10 | 9 |
| Negative | 106 | 91 |
| Typing total | 38 | 100 |
| A2A (Hb A2: 2.0%–3.1%) (normal type) | 31 | 82 |
| A2A (Hb A2: 4.9%) (b-thalassemia trait) | 1 | 3 |
| EA (HbE trait) | 5 | 13 |
| EE (HbE Homozygous) | 1 | 3 |
| α-Thalassemia 1 (SEA) | 0 | 0 |