TABLE 2.
Characteristics of the participants with and without MCI (n = 4,631).
| Characteristics | MCI |
P-valuea | |
| No | Yes | ||
| No. of subjects | 4,163 | 468 | |
| Sociodemographic characteristics | |||
| Age group (%, years)c | |||
| 60–64 | 1,323 (31.8) | 141 (30.1) | 0.47 |
| 65–69 | 1,501 (36.1) | 132 (28.2) | <0.001d |
| 70–74 | 942 (22.6) | 127 (27.1) | 0.029 |
| ≥75 | 387 (9.54) | 68 (14.5) | <0.001 |
| Sex (males, %) | 1,890 (45.4) | 162 (34.6) | <0.0001 |
| Education level (≥high school, %) | 707 (17.0) | 51 (10.9) | <0.001 |
| Currently married (%) | 3,673 (88.2) | 394 (84.2) | 0.012 |
| Income status (%, RMB) | |||
| <3,000 | 2,992 (71.9) | 363 (77.6) | <0.01 |
| 3,000–5,000 | 592 (14.2) | 61 (13.0) | 0.48 |
| >5,000 | 579 (13.9) | 44 (9.40) | <0.01 |
| Employed (%) | 287 (6.89) | 19 (4.06) | 0.021 |
| Health-related variables | |||
| BMI (kg/m2) | 25.6 (25.5, 25.7)b | 25.0 (24.7, 25.3) | <0.001 |
| Hypertension (%) | 2,166 (52.0) | 282 (60.3) | <0.001 |
| SBP (mmHg) | 132.4 (132.0, 132.8) | 134.6 (133.4, 135.8) | <0.001 |
| DBP (mmHg) | 80.5 (80.3, 80.8) | 80.5 (79.9, 81.2) | 1.00 |
| Diabetes (%) | 761 (18.3) | 89 (19.0) | 0.70 |
| FBG (mmol/L) | 5.33 (5.30, 5.37) | 5.22 (5.11, 5.32) | 0.028 |
| Hyperlipidemia (%) | 2,654 (63.8) | 278 (59.4) | 0.064 |
| TC (mmol/L) | 5.09 (5.06, 5.12) | 5.12 (5.02, 5.22) | 0.59 |
| TG (mmol/L) | 1.41 (1.39, 1.43) | 1.35 (1.29, 1.41) | 0.070 |
| LDL-C (mmol/L) | 2.48 (2.45, 2.50) | 2.55 (2.49, 2.62) | 0.019 |
| HDL-C (mmol/L) | 1.28 (1.27, 1.29) | 1.29 (1.27, 1.32) | 0.34 |
| GS (adjusted weight) (kg) | 23.1 (22.8, 23.3) | 20.4 (19.7, 21.2) | <0.0001 |
| PA (≥23.0 METs-h/w, %) | 2,700 (64.9) | 265 (56.6) | <0.001 |
| Sleepiness (scores) | 9.33 (9.24, 9.43) | 10.0 (9.73, 10.3) | <0.0001 |
| Sleep duration (%) | |||
| <6.5 h | 263 (6.32) | 23 (4.91) | 0.23 |
| 6.5–8.5 h | 2,266 (54.4) | 202 (43.2) | <0.0001 |
| >8.5 h | 1,634 (39.3) | 243 (51.9) | <0.0001 |
| Smoking status (%) | |||
| Non-smoker | 2,648 (63.6) | 316 (67.5) | 0.095 |
| Ex-smoker | 335 (8.05) | 21 (4.49) | <0.01 |
| Current smoker | 1,180 (28.3) | 131 (28.0) | 0.87 |
| Alcohol drinking (%) | 3,191 (23.4) | 390 (16.7) | <0.01 |
| MMSE scores | 25.9 (25.8, 26.1) | 17.8 (17.5, 18.1) | <0.0001 |
| ADL scores | 15.4 (15.3, 15.6) | 15.6 (15.3, 15.9) | 0.34 |
BMI, body mass index; TC, total cholesterol; TG, triglycerides; LDL-C, low-density lipoprotein cholesterol; HDL-C, high-density lipoprotein cholesterol; SBP, systolic blood pressure; DBP, diastolic blood pressure; GS, grip strength; PA, physical activity; METs, metabolic equivalents; MMSE, Mini-Mental State Examination; ADL, activities of daily living. aAnalysis of variance or logistic regression analysis. bGeometric least square mean (95% confidence interval) (all such values). cCategorical variables are expressed as number (percentage) of participants. d Boldface indicates statistical significance (P < 0.05) (or appropriate value).