Table 1. Baseline socioeconomic characteristics with and without dementia among elderly of southern China in 2014 (n = 2015).
| Characteristics | Women | Men | All | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Without dementia | With dementia | Total | Without dementia | With dementia | Total | Without dementia | With dementia | Total | P-value* | |
| Total, n(%) | 880 (75.54) | 285 (24.46) | 1165 (57.85) | 690 (81.27) | 159 (18.73) | 849 (42.15) | 1571 (77.87) | 444 (22.03) | 2015 (100) | <0.001 |
| Age,65–69,n (%) | 126 (14.32) | 5 (1.75) | 131 (11.24) | 116 (16.81) | 9 (5.66) | 125 (14.72) | 242 (15.40) | 14 (3.15) | 256 (12.70) | 0.707 |
| 70–74,n (%) | 164 (18.64) | 17 (5.96) | 181 (15.54) | 120 (17.39) | 8 (5.03) | 128 (15.08) | 284 (18.08) | 25 (5.63) | 309 (15.33) | 0.003 |
| 75–79,n (%) | 205 (23.30) | 35 (12.28) | 240 (20.60) | 144 (20.87) | 26 (16.35) | 170 (20.02) | 349 (22.22) | 61 (13.74) | 410 (20.35) | 0.001 |
| 80–84,n (%) | 217 (24.66) | 68 (23.86) | 285 (24.46) | 160 (23.19) | 42 (26.42) | 202 (23.79) | 378 (24.06) | 110 (24.77) | 488 (24.22) | <0.001 |
| 85–89,n (%) | 119 (13.52) | 80 (28.07) | 199 (17.08) | 103 (14.93) | 43 (27.04) | 148 (17.20) | 222 (14.13) | 123 (27.70) | 345 (17.12) | 0.004 |
| 90–94,n (%) | 43 (4.89) | 60 (21.05) | 103 (8.84) | 39 (5.65) | 23 (14.47) | 62 (7.30) | 82 (5.22) | 83 (18.69) | 165 (8.19) | 0.001 |
| 95 and above,n (%) | 6 (0.68) | 20 (7.02) | 26 (2.23) | 8 (1.16) | 8 (5.03) | 16 (1.88) | 14 (0.89) | 28 (6.31) | 42 (2.08) | 0.123 |
| Mean±SD (years) | 78.08±7.04 | 85.03±6.85 | 79.78±7.60 | 78.15±7.49 | 83.34±7.10 | 79.12±7.69 | 78.11±7.24 | 84.42±6.98 | 79.50±7.64 | 0.056 |
| Education, n(%) | ||||||||||
| Illiterate (<1 year) | 99 (11.25) | 76 (43.68) | 175 (16.60) | 25 (3.62) | 14 (14.89) | 39 (4.97) | 124 (7.89) | 90 (33.58) | 214 (11.64) | <0.001 |
| Primary school (1–6 years) | 247 (28.07) | 47 (27.01) | 294 (27.89) | 116 (16.81) | 36 (38.30) | 152 (19.39) | 363 (23.11) | 83 (30.97) | 446 (24.25) | <0.001 |
| Middle school (7–12 years) | 399 (45.34) | 43 (24.71) | 442 (41.94) | 350 (50.72) | 28 (29.79) | 378 (48.21) | 750 (47.74) | 71 (26.49) | 821 (44.64) | 0.025 |
| High school (>13 years) | 135 (15.34) | 8 (4.60) | 143 (13.57) | 199 (28.84) | 16 (17.02) | 215 (27.42) | 334 (21.26) | 24 (8.96) | 358 (19.47) | <0.001 |
| State of marriage, n(%) | ||||||||||
| Married | 544 (61.82) | 53 (31.74) | 597 (57.02) | 571 (82.99) | 57 (61.29) | 628 (80.41) | 1116 (71.13) | 110 (42.31) | 1226 (67.03) | 0.376 |
| living alone | 336 (38.18) | 114 (68.26) | 450 (42.98) | 117 (17.01) | 36 (38.71) | 153 (19.59) | 453 (28.87) | 150 (57.69) | 603 (32.97) | <0.001 |
| Medical history, n (%) | ||||||||||
| Dementia | 24 (2.73) | 9 (5.63) | 33 (3.18) | 25 (3.63) | 1 (1.08) | 26 (3.32) | 49 (3.12) | 10 (3.95) | 59 (3.24) | 0.894 |
| Coronary heart disease | 388 (44.14) | 58 (35.15) | 446 (42.72) | 256 (37.10) | 26 (27.37) | 282 (35.92) | 644 (41.02) | 84 (32.31) | 728 (39.78) | 0.009 |
| Hypertension | 594 (67.50) | 95 (57.58) | 689 (65.93) | 472 (68.51) | 56 (58.95) | 528 (67.35) | 1066 (67.90) | 151 (58.08) | 1217 (66.50) | 0.526 |
| Diabetes | 176 (20.00) | 39 (23.49) | 215 (20.55) | 134 (19.42) | 27 (28.13) | 161 (20.48) | 310 (19.73) | 66 (25.19) | 376 (20.51) | 0.970 |
| Stroke | 89 (10.14) | 21 (12.57) | 110 (10.53) | 71 (10.30) | 31 (31.31) | 102 (12.94) | 160 (10.20) | 52 (19.55) | 212 (11.56) | 0.109 |
| Family income, n(%) | ||||||||||
| High | 4 (0.45) | 0 | 4 (0.34) | 14 (2.03) | 3 (1.89) | 17 (2.00) | 18 (1.15) | 3 (0.68) | 21 (1.04) | 0.005 |
| Middle | 545 (61.93) | 57 (20.00) | 602 (51.67) | 588 (85.22) | 46 (28.93) | 634 (74.68) | 1134 (72.18) | 103 (23.20) | 1237 (61.39) | 0.363 |
| Low | 331 (37.61) | 228 (80.00) | 559 (47.98) | 88 (12.75) | 110 (69.18) | 198 (23.32) | 419 (26.67) | 338 (76.13) | 757 (37.57) | <0.001 |
| Lifestyle habits, n(%) | ||||||||||
| Cigarette smoking | 19 (2.17) | 6 (3.59) | 25 (2.39) | 188 (27.29) | 29 (31.18) | 217 (27.75) | 207 (13.21) | 35 (13.46) | 242 (13.25) | <0.001 |
| Alcohol drinking | 356 (40.59) | 136 (81.93) | 492 (47.17) | 293 (42.46) | 72 (75.79) | 365 (46.50) | 650 (41.45) | 208 (79.69) | 858 (46.91) | 0.255 |
| Tea drinking | 453 (51.83) | 60 (39.22) | 513 (49.95) | 296 (42.90) | 38 (40.43) | 334 (42.60) | 749 (47.86) | 98 (39.68) | 847 (46.74) | 0.035 |
| Body mass index, Mean±SD (kg/m2) | 22.12±3.76 | 23.72±2.21 | 22.18±3.71 | 23.28±3.20 | 24.51±2.11 | 23.28±3.20 | 22.61±3.56 | 23.72±2.25 | 22.64±3.53 | 0.123 |
*P-value is the significance of t-test or chi-square between total women and total men.