Table 1.
Differences in the basic characteristics between younger and older breast cancer women.
| Variable | Age | χ2 | P | |
|---|---|---|---|---|
| Younger (<50) (n = 743) | Older (≥50) (n = 456) | |||
| Basic demographic information | ||||
| Location | 0.893 | 0.345 | ||
| Urban | 336 (47.6%) | 225 (50.4%) | ||
| Rural | 370 (52.4%) | 221 (49.6%) | ||
| Education | 43.845 | <0.001 | ||
| Elementary or low | 102 (14.1%) | 122 (27.9%) | ||
| Middle | 274 (38.0%) | 126 (28.8%) | ||
| High | 220 (30.5%) | 145 (33.1%) | ||
| College | 120 (16.6%) | 44 (10.0%) | ||
| Postgraduate | 6 (0.8%) | 1 (0.2%) | ||
| Family average revenue (RMB) | 11.962 | 0.018 | ||
| <1,000 | 48 (6.6%) | 47 (10.5%) | ||
| 1,000–1,999 | 119 (16.4%) | 92 (20.6%) | ||
| 2,000–2,999 | 208 (28.7%) | 117 (26.2%) | ||
| 3,000–4,999 | 175 (24.1%) | 105 (23.5%) | ||
| ≥5,000 | 176 (24.2%) | 85 (19.1%) | ||
| Economic status | 4.939 | 0.176 | ||
| High | 19 (2.6%) | 13 (2.7%) | ||
| Good | 159 (21.8%) | 97 (21.7%) | ||
| Average | 461 (63.2%) | 262 (58.6%) | ||
| Poor | 90 (12.3%) | 75 (16.8%) | ||
| Social status | 1.999 | 0.573 | ||
| High | 23 (3.2%) | 13 (3.0%) | ||
| Good | 163 (22.5%) | 103 (23.4%) | ||
| Average | 499 (68.9%) | 292 (66.4%) | ||
| Poor | 39 (5.4%) | 32 (7.3%) | ||
| Menopause | 585.054 | <0.001 | ||
| Yes | 56 (7.7%) | 340 (76.9%) | ||
| No | 667 (92.3%) | 102 (23.1%) | ||
| Marriage | 1.376 | 0.241 | ||
| Ever | 722 (97.2%) | 448 (98.2%) | ||
| Never | 21 (2.8%) | 8 (1.8%) | ||
| Family history of breast cancer | 0.444 | 0.505 | ||
| Yes | 45 (6.3%) | 23 (5.3%) | ||
| No | 668 (93.7%) | 407 (94.7%) | ||
| Lifestyle habits characteristics | ||||
| Cigarette smoking | 1.465 | 0.226 | ||
| Yes | 20 (2.7%) | 18 (4.0%) | ||
| No | 721 (97.3%) | 436 (96.0%) | ||
| Second-hand smoking | 0.880 | 0.348 | ||
| Yes | 277 (60.5%) | 174 (64.0%) | ||
| No | 181 (39.5%) | 98 (36.0%) | ||
| Alcohol drinking | 0.109 | 0.742 | ||
| Yes | 96 (13.0%) | 56 (12.3%) | ||
| No | 643 (87.0%) | 398 (87.7%) | ||
| Tea | 1.640 | 0.200 | ||
| Yes | 141 (19.3%) | 100 (22.4%) | ||
| No | 589 (80.7%) | 346 (77.6%) | ||
| Coffee | 0.035 | 0.853 | ||
| Yes | 31 (4.3%) | 20 (4.5%) | ||
| No | 694 (95.7%) | 424 (95.5%) | ||
| Sleep satisfaction | 2.436 | 0.296 | ||
| Very satisfied | 90 (12.3%) | 48 (10.8%) | ||
| Satisfied | 514 (70.4%) | 305 (68.2%) | ||
| Dissatisfied | 126 (17.3%) | 92 (20.7%) | ||
| Current life satisfaction | 4.565 | 0.102 | ||
| Very satisfied | 82 (11.0%) | 39 (8.6%) | ||
| Satisfied | 493 (66.4%) | 329 (72.1%) | ||
| Dissatisfied | 168 (22.6%) | 88 (19.3%) | ||
| Physical activity | 2.142 | 0.343 | ||
| Often | 210 (28.5%) | 129 (28.5%) | ||
| Occasionally | 311 (42.3%) | 175 (38.6%) | ||
| Never | 215 (29.2%) | 149 (32.9%) | ||
| BMI (kg/m2) | 19.080 | <0.001 | ||
| <24.0 | 373 (51.9%) | 183 (42.6%) | ||
| 24.0–28.0 | 275 (38.2%) | 169 (39.3%) | ||
| >28.0 | 71 (9.9%) | 78 (18.1%) | ||