TABLE 4.
Characteristics of the participants with and without MCI among the different age groups (n = 4,631)a.
| Characteristics | 60–64 (n = 1,464) | 65–69 (n = 1,633) | 70–74 (n = 1,069) | ≥75 (n = 465) | ||||
| No | Yes | No | Yes | No | Yes | No | Yes | |
| No. of subjects | 1,323 | 141 | 1,501 | 132 | 942 | 127 | 397 | 68 |
| Sociodemographic characteristics | ||||||||
| Sex (males,%)d,e,f,g | 751 (43.2) | 89 (36.9) | 845 (43.7) | 88 (33.3) | 491 (47.9) | 84 (33.9) | 186 (53.2) | 45 (33.8) |
| Education level (≥ high school,%)c,e | 296 (22.4) | 21 (14.9) | 223 (14.9) | 18 (13.6) | 121 (12.9) | 7 (5.51) | 67 (16.9) | 5 (7.35) |
| Currently married (%)e | 1,210 (91.5) | 126 (89.4) | 1,352 (90.1) | 122 (92.4) | 814 (86.4) | 100 (78.7) | 297 (74.8) | 46 (67.7) |
| Income status (%, RMB) | ||||||||
| <3,000e | 917 (69.3) | 106 (75.2) | 1,091 (72.7) | 91 (68.9) | 677 (71.9) | 109 (85.8) | 307 (77.3) | 57 (83.8) |
| 3,000–5,000 | 197 (14.9) | 23 (16.3) | 210 (14.0) | 21 (15.9) | 140 (14.86) | 12 (9.45) | 45 (11.34) | 5 (7.35) |
| >5,000c,e | 209 (15.8) | 12 (8.51) | 200 (13.3) | 20 (15.2) | 125 (13.3) | 6 (4.72) | 45 (11.3) | 6 (8.82) |
| Employed (%)c | 152 (11.5) | 7 (4.96) | 100 (6.66) | 11 (8.33) | 28 (2.97) | 1 (0.79) | 7 (1.76) | 0 (0) |
| Health-related variables | ||||||||
| BMI (kg/m2)e,f | 25.6 (25.4, 25.8)b | 25.4 (24.9, 26.0) | 25.6 (25.5, 25.8) | 25.7 (25.2, 26.3) | 25.6 (25.3, 25.8) | 24.6 (24.0, 25.1) | 25.2 (24.9, 25.6) | 23.6 (22.9, 24.3) |
| Hypertension (%)e | 601 (45.4) | 74 (52.5) | 814 (54.2) | 77 (54.2) | 536 (56.9) | 88 (69.3) | 215 (54.2) | 43 (63.2) |
| SBP (mmHg)e | 130.2 (129.5, 130.8) | 131.6 (129.5, 133.7) | 132.6 (132.0, 133.3) | 133.8 (131.5, 136.0) | 134.4 (133.6, 135.2) | 138.0 (135.7, 140.4) | 134.6 (133.4, 135.8) | 136.2 (133.3, 139.3) |
| DBP (mmHg) | 80.5 (80.1, 80.9) | 80.3 (79.1, 81.5) | 80.7 (80.4, 81.1) | 80.9 (79.7, 82.2) | 80.7 (80.2, 81.2) | 80.6 (79.3, 82.0) | 79.8 (79.1, 80.4) | 80.1 (78.5, 81.8) |
| Diabetes (%) | 224 (16.9) | 29 (20.6) | 275 (18.3) | 29 (22.0) | 188 (20.0) | 25 (19.7) | 74 (18.6) | 6 (8.82) |
| FBG (mmol/L)e,f | 5.29 (5.24, 5.35) | 5.28 (5.11, 5.47) | 5.34 (5.29, 5.40) | 5.40 (5.21, 5.60) | 5.38 (5.30, 5.45) | 5.10 (4.91, 5.30) | 5.34 (5.24, 5.45) | 4.95 (4.72, 5.19) |
| Hyperlipidemia (%)c | 882 (66.7) | 82 (58.2) | 949 (63.2) | 85 (64.4) | 576 (61.2) | 75 (59.1) | 247 (62.2) | 36 (52.9) |
| TC (mmol/L) | 5.13 (5.07, 5.19) | 5.11 (4.93, 5.30) | 5.06 (5.00, 5.11) | 5.27 (5.07, 5.47) | 5.10 (5.03, 5.17) | 5.04 (4.85, 5.23) | 5.08 (4.98, 5.19) | 5.01 (4.77, 5.28) |
| TG (mmol/L) | 1.44 (1.40, 1.48) | 1.35 (1.24, 1.46) | 1.44 (1.40, 1.47) | 1.45 (1.33, 1.58) | 1.36 (1.32, 1.40) | 1.30 (1.19, 1.42) | 1.33 (1.27, 1.39) | 1.26 (1.13, 1.41) |
| LDL-C (mmol/L) | 2.50 (2.46, 2.54) | 2.57 (2.46, 2.69) | 2.45 (2.41, 2.48) | 2.56 (2.44, 2.69) | 2.48 (2.44, 2.53) | 2.54 (2.43, 2.66) | 2.48 (2.42, 2.55) | 2.53 (2.37, 2.71) |
| HDL-C (mmol/L) | 1.29 (1.28, 1.31) | 1.29 (1.24, 1.33) | 1.26 (1.24, 1.27) | 1.29 (1.24, 1.35) | 1.30 (1.27, 1.32) | 1.31 (1.24, 1.38) | 1.28 (1.25, 1.31) | 1.29 (1.22, 1.37) |
| GS (adjusted weight) (kg)c,d,e,f | 24.9 (24.4, 25.5) | 22.5 (21.1, 24.0) | 23.1 (22.7, 23.5) | 20.5 (19.3, 21.9) | 21.5 (21.0, 22.1) | 19.3 (18.0, 20.7) | 21.0 (20.2, 21.9) | 18.0 (16.2, 20.0) |
| PA (≥23.0 METs-h/w, %)c,e | 881 (66.6) | 82 (58.2) | 984 (65.6) | 80 (60.6) | 600 (63.7) | 64 (50.4) | 235 (59.2) | 39 (57.4) |
| Sleepiness (scores)c,d | 9.35 (9.18, 9.51) | 10.5 (9.96, 11.1) | 9.29 (9.14, 9.45) | 9.97 (9.43, 10.5) | 9.45 (9.25, 9.65) | 9.77 (9.22, 10.4) | 9.18 (8.89, 9.49) | 9.60 (8.87, 10.4) |
| Sleep duration (%) | ||||||||
| <6.5 h | 85 (6.42) | 8 (5.67) | 103 (6.86) | 9 (6.82) | 55 (5.84) | 3 (2.36) | 20 (5.04) | 3 (4.41) |
| 6.5–8.5 hd,e | 779 (58.9) | 81 (57.5) | 858 (57.2) | 59 (44.7) | 459 (48.7) | 38 (29.9) | 170 (42.8) | 24 (35.3) |
| >8.5 hd,e | 459 (34.7) | 52 (36.9) | 540 (36.0) | 64 (48.5) | 428 (45.4) | 86 (67.7) | 207 (52.1) | 41 (60.3) |
| Smoking status (%) | ||||||||
| Non-smoker | 839 (63.4) | 92 (65.3) | 955 (63.6) | 87 (65.9) | 601 (63.8) | 89 (70.1) | 253 (63.7) | 48 (70.6) |
| Ex-smokerf | 88 (6.65) | 7 (4.96) | 120 (7.99) | 7 (5.30) | 87 (9.24) | 6 (4.72) | 40 (10.1) | 1 (1.47) |
| Current smoker | 396 (29.9) | 42 (29.8) | 426 (28.4) | 38 (28.8) | 254 (27.0) | 32 (25.2) | 104 (26.2) | 19 (27.9) |
| Drinking status (Yes, %)d | 983 (25.7) | 112 (20.6) | 1,166 (22.3) | 113 (14.4) | 733 (22.2) | 108 (15.0) | 309 (22.2) | 57 (16.2) |
| MMSE scoresc,d,e,f | 26.2 (26.0, 26.4) | 18.4 (17.9, 18.8) | 25.7 (25.5, 25.9) | 18.2 (17.6, 18.7) | 26.0 (25.7, 26.3) | 17.5 (17.0, 18.1) | 25.2 (24.74, 25.7) | 16.6 (15.8, 17.4) |
| ADL scores | 15.1 (14.9, 15.3) | 15.1 (14.7, 15.6) | 15.4 (15.2, 15.6) | 15.7 (15.1, 16.4) | 15.6 (15.4, 15.8) | 15.6 (15.0, 16.3) | 16.5 (16.0, 17.0) | 16.3 (15.2, 17.4) |
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; FBG, fasting blood glucose; 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). cP < 0.05 for group of 60 to 64 years; dP < 0.05 for group of 65 to 69 years; eP < 0.05 for group of 70–74 years; fP < 0.05 for group of aged 75 and over. gCategorical variables are expressed as number (percentage) of participants.