| Variables | Control group (n = 99) | Test group (n = 93) | t/X2 (p) |
| Female | 99 (100) | 93 (100) |
|
| Age | 48.7 ± 10.9 | 48.5 ± 9.9 | 0.10 (0.92) |
| Educational Level |
|
| 7.84 (0.10) |
| Primary school and below | 19 (19.2) | 17 (18.3) |
|
| Junior high school | 36 (36.4) | 27 (29.0) |
|
| Technical secondary school | 21 (21.2) | 12 (12.9) |
|
| Junior college | 12 (12.1) | 24 (25.8) |
|
| Bachelor degree and above | 11 (11.1) | 13 (14.0) |
|
| Marital status |
|
| 1.17 (0.56) |
| Married | 89 (89.9) | 87 (93.5) |
|
| Unmarried | 8 (8.1) | 4 (4.3) |
|
| Widowed | 2 (2.0) | 2 (2.2) |
|
| Working status |
|
| 0.67 (0.42) |
| In service | 40 (40.4) | 43 (46.2) |
|
| Not in service | 59 (59.6) | 50 (53.8) |
|
| Per capita monthly household income (RMB/yuan) |
|
| 7.26 (0.03) |
| <2000 | 21 (21.2) | 10 (10.8) |
|
| 2000 - 6000 | 47 (47.5) | 38 (40.9) |
|
| >6000 | 31 (31.3) | 45 (48.3) |
|
| Mode of medical payment |
|
| 5.04 (0.28) |
| Self-paying | 12 (12.1) | 7 (7.5) |
|
| Basic medical insurance for urban workers/non-working urban residents | 61 (61.6) | 70 (75.3) |
|
| Free medical service | 2 (2.0) | 2 (2.2) |
|
| NCMS | 20 (20.2) | 13 (14.0) |
|
| Commercial insurance | 4 (4.0) | 1 (1.0) |
|
| Family residence |
|
| 15.51 (<0.01) |
| Provincial capital | 25 (25.3) | 46 (49.5) |
|
| Prefecture-level city | 29 (29.3) | 24 (25.8) |
|
| Urban area | 21 (21.2) | 15 (16.1) |
|
| Rural area | 24 (24.2) | 8 (8.6) |
|
| Mode of residence |
|
| 0.15 (0.70) |
| Living alone | 9 (9.1) | 10 (10.8) |
|
| Not living alone | 90 (90.9) | 83 (89.2) |
|
| Tumor grading |
|
| 6.19 (0.40) |
| I a | 22 (22.2) | 27 (29.0) |
|
| II a | 37 (37.4) | 38 (40.9) |
|
| II b | 20 (20.2) | 10 (10.8) |
|
| III a | 7 (7.1) | 9 (9.7) |
|
| III b | 2 (2.0) | 0 (0) |
|
| III c | 8 (8.1) | 7 (7.5) |
|
| IV | 3 (3.0) | 2 (2.1) |
|
| Length of stay | 9.9 ± 3.9 | 10.7 ± 4.3 | 1.28 (0.20) |
| Discharged with drainage tube | 67 (67.7) | 68 (73.1) | 0.68 (0.41) |