TABLE 2.
Analysis of mtDNA haplogroup M7 and disability.
| Non-M7 | M7 | p-value | |
| (n = 428) | (n = 35) | ||
| Age | 97.41 ± 2.12 | 97.63 ± 1.81 | 0.548 |
| Gender (%) | 0.302 | ||
| Male | 97 (22.7%) | 6 (17.1%) | |
| Female | 331 (77.3%) | 29 (82.9%) | |
| Marriage status | 0.704 | ||
| Married | 22 (5.1%) | 1 (2.9%) | |
| Widowed | 402 (93.9%) | 34 (97.1%) | |
| Unmarried | 4 (0.9%) | 0 (0.0%) | |
| Smoking habits | 0.044 | ||
| Smoked | 38 (8.9%) | 0 (0.0%) | |
| Never smoked | 390 (91.1%) | 35 (100.0%) | |
| Drinking habits | 0.32 | ||
| Drink | 146 (34.1%) | 10 (28.6%) | |
| Never | 282 (65.9%) | 25 (71.4%) | |
| Height (cm) | 153.54 ± 11.29 | 153.79 ± 6.98 | 0.895 |
| Weight (kg) | 51.43 ± 11.45 | 47.91 ± 7.43 | 0.079 |
| BMI (kg/m2) | 21.63 ± 4.23 | 20.27 ± 2.94 | 0.067 |
| SBP (mmHg) | 136.93 ± 22.95 | 134.11 ± 18.42 | 0.481 |
| DBP (mmHg) | 80.07 ± 11.05 | 79.27 ± 10.66 | 0.68 |
| GLU (mmol/L) | 4.97 ± 1.35 | 4.67 ± 0.89 | 0.316 |
| Disability | 50.9% | 77.1% | 0.002 |
| ADL | 8.56 ± 3.60 | 10.34 ± 3.66 | 0.006 |
| IADL | 12.38 ± 3.64 | 13.89 ± 3.20 | 0.018 |
| Hemoglobin (g/L) | 128.50 ± 19.99 | 127.88 ± 21.57 | 0.865 |
| Platelets(10^9/L) | 163.91 ± 67.93 | 190.61 ± 60.88 | 0.029 |
| White blood cell (10^9/L) | 5.39 ± 1.62 | 5.83 ± 2.21 | 0.142 |
| Albumin (g/L) | 42.30 ± 4.65 | 41.96 ± 4.58 | 0.691 |
| Protein (g/L) | 70.10 ± 6.58 | 70.66 ± 6.25 | 0.637 |
| Phosphatase (IU/L) | 85.38 ± 25.43 | 97.45 ± 28.78 | 0.01 |
| Creatinine (μmol/L) | 65.42 ± 20.08 | 65.67 ± 18.02 | 0.956 |
| UA (μmol/L) | 280.85 ± 94.53 | 290.36 ± 87.45 | 0.576 |
| CHOL (mmol/L) | 4.77 ± 0.94 | 4.96 ± 1.15 | 0.251 |
| TG (mmol/L) | 1.10 ± 0.51 | 1.10 ± 0.41 | 0.999 |
| LDL (mmol/L) | 2.49 ± 0.69 | 2.56 ± 0.71 | 0.56 |
| HDL (mmol/L) | 1.37 ± 0.33 | 1.15 ± 0.42 | 0.186 |
| Status of survival (%) | 0.389 | ||
| Survival | 40 (9.5%) | 2 (6.1%) | |
| Death | 379 (90.5%) | 31 (93.9%) |
Values in parentheses are the percentage of samples. BMI, body mass index; SBP, systolic blood pressure; DBP, diastolic blood pressure; GLU, glucose in urine; UA, uric acid; CHOL, cholesterol; TG, triglyceride; LDL, low density lipoprotein; HDL, high density lipoprotein. P-value: Chi-square test was used in the table.