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Mean levels of plasma MMP-9 within the disease group
| Attribute | Mean ± S.D (n) | Attribute | Mean ± S.D (n) | t value | P value |
|---|---|---|---|---|---|
| Males | 18.271 ± 3.024 (104) | Females | 21.251 ± 0.606 (8) | 2.7719 | 0.0065 |
| <35 years | 18.273 ± 3.298 (46) | ≥35 years | 18.361 ± 2.867 (66) | 0.1502 | 0.8809 |
| Alcoholics | 18.289 ± 2.835 (86) | Non-alcoholics | 18.442 ± 3.703 (26) | 0.2238 | 0.8233 |
| Smokers | 18.161 ± 2.821 (66) | Non-smokers | 18.561 ± 3.342 (46) | 0.6840 | 0.4954 |
| Familial | 20.683 ± 1.719 (6) | Non-familial | 18.192 ± 3.035 (106) | 1.9868 | 0.0494 |
