Table 1 Characteristics of the study sample from the national epidemiological survey of primary brain tumours in China, 2013
Sample for mortality | Sample for detection rate | ||||
|---|---|---|---|---|---|
Characteristic | No. | % | Weighteda % | No. | % |
Age group | |||||
0~ | 85,462 | 14.3% | 17.4% | 28 | 0.2% |
15~ | 81,378 | 13.7% | 17.3% | 34 | 0.2% |
25~ | 89,597 | 15.0% | 15.1% | 143 | 1.0% |
35~ | 102,999 | 17.3% | 18.5% | 560 | 3.7% |
45~ | 90,667 | 15.2% | 13.4% | 1917 | 12.8% |
55~ | 78,075 | 13.1% | 10.2% | 4767 | 31.8% |
65~ | 43,245 | 7.3% | 5.3% | 4590 | 30.6% |
75~ | 24,288 | 4.1% | 2.9% | 2951 | 19.7% |
Sex | |||||
Men | 299,725 | 50.3% | 51.1% | 7296 | 48.7% |
Women | 295,986 | 49.7% | 48.9% | 7694 | 51.3% |
Ethnicity | |||||
Han | 518,151 | 87.0% | 91.4% | 13,756 | 91.8% |
Other | 77,560 | 13.0% | 8.6% | 1234 | 8.2% |
Education, n (%) | |||||
Primary school | 245,192 | 41.2% | 38.9% | 9176 | 61.2% |
Middle school | 294,193 | 49.4% | 49.2% | 5297 | 35.3% |
College and higher | 51,721 | 8.7% | 11.3% | 504 | 3.4% |
Missing | 4605 | 0.8% | 0.5% | 13 | 0.1% |
Marital status, n (%) | |||||
Married | 391,124 | 65.7% | 61.2% | 12,059 | 80.4% |
Single | 115,438 | 19.4% | 23.8% | 238 | 1.6% |
Widowed | 32,731 | 5.5% | 4.2% | 2640 | 17.6% |
other | 51,402 | 8.6% | 10.2% | 33 | 0.3% |
Missing | 5016 | 0.8% | 0.6% | 20 | 0.1% |
Occupation, n (%) | |||||
Students | 105,510 | 17.7% | 22.4% | 42 | 0.3% |
Worker | 45,004 | 7.6% | 8.8% | 620 | 4.1% |
Farmer | 270,916 | 45.5% | 38.8% | 8343 | 55.7% |
Employee | 46,674 | 7.8% | 9.9% | 350 | 2.3% |
Entrepreneur | 52,516 | 8.8% | 10.2% | 393 | 2.6% |
Retiree or homemaker | 66,145 | 11.1% | 8.7% | 5154 | 34.4% |
other | 4356 | 0.7% | 0.7% | 76 | 0.5% |
Missing | 4590 | 0.8% | 0.5% | 12 | 0.1% |
Place of residence | |||||
Urban | 282,169 | 47.4% | 52.8% | 7628 | 50.9% |
Rural | 313,542 | 52.6% | 47.2% | 7362 | 49.1% |
Geographic location | |||||
Eastern China | 201,196 | 33.8% | 40.7% | 4950 | 33.0% |
Central China | 239,288 | 40.2% | 32.0% | 7073 | 47.2% |
Western China | 155,227 | 26.1% | 27.3% | 2967 | 19.8% |