Table 1.
Demographic characteristics by invasive disease status among 20,131 women seen November 2002 to June 2011
| No invasive cervical cancer | Invasive cervical cancer | ||||
|---|---|---|---|---|---|
| N/mean | %/SD | N/mean | %/SD | ||
| Total | 19,151 | 95.1 | 980 | 4.9 | |
| Occupation | |||||
| Housewife | 9,847 | 51.4% | 755 | 77.0% | p < 0.0001* |
| Manual | 727 | 3.8% | 64 | 6.5% | |
| Technical | 235 | 1.2% | 2 | 0.2% | |
| Office going | 2,126 | 11.1% | 32 | 3.3% | |
| Teaching | 1,332 | 7.0% | 11 | 1.1% | |
| Professional | 1,217 | 6.4% | 3 | 0.3% | |
| Business | 3,529 | 18.4% | 100 | 10.2% | |
| Other | 101 | 0.5% | 9 | 0.9% | |
| Missing | 37 | 0.2% | 4 | 0.4% | |
| Education | |||||
| None | 1,723 | 9.0% | 411 | 41.9% | p < 0.0001* |
| Primary | 10,365 | 54.1% | 481 | 49.1% | |
| Middle | 4,524 | 23.6% | 63 | 6.4% | |
| High School | 628 | 3.3% | 9 | 0.9% | |
| College | 1,843 | 9.6% | 9 | 0.9% | |
| Missing | 68 | 0.4% | 7 | 0.7% | |
| Marital status | |||||
| Married/regular partner | 15,551 | 81.2% | 630 | 64.3% | p < 0.0001* |
| Widowed | 1,368 | 7.1% | 207 | 21.1% | |
| Separated | 1,402 | 7.3% | 131 | 13.4% | |
| Other | 677 | 3.5% | 6 | 0.6% | |
| Missing | 153 | 0.8% | 6 | 0.6% | |
| Last menstrual period | |||||
| <12 months ago | 15,962 | 83.3% | 530 | 54.1% | p < 0.0001* |
| >12 months ago | 3,060 | 16.0% | 436 | 44.5% | |
| Missing | 129 | 0.7% | 14 | 1.4% | |
| Age | 39.4 | 10.0 | 50.5 | 12.9 | p < 0.0001** |
| Missing | 48 | 3 | |||
| Age at marriage | 21.4 | 4.4 | 19.0 | 4.3 | p < 0.0001** |
| Missing | 1,966 | 94 | |||
| Gravidity | 3.8 | 2.7 | 6.3 | 3.2 | p < 0.0001** |
| Missing | 731 | 15 | |||
| Year of screening | |||||
| 2002 | 549 | 2.9% | 10 | 1.0% | p < 0.0001* |
| 2003 | 4,681 | 24.4% | 77 | 7.9% | |
| 2004 | 2,465 | 12.9% | 82 | 8.4% | |
| 2005 | 1,570 | 8.2% | 81 | 8.3% | |
| 2006 | 1,089 | 5.7% | 92 | 9.4% | |
| 2007 | 1,610 | 8.4% | 134 | 13.7% | |
| 2008 | 1,698 | 8.9% | 144 | 14.7% | |
| 2009 | 2,258 | 11.8% | 143 | 14.6% | |
| 2010 | 2,363 | 12.3% | 155 | 15.8% | |
| 2011 | 866 | 4.5% | 58 | 5.9% | |
| Missing | 2 | 0.0% | 4 | 0.4% | |
*Chi-squared test.
**Mann-Whitney U test (t approximation).