Table 1. Numbers and percentages of cases of esophageal cancer and controls according to selected sociodemographic variables. Goiânia, 1998 to 2003.
| Variable | Case | Control | P-value* | OR (95% CI) | ||
|---|---|---|---|---|---|---|
| n | % | n | % | |||
| Gender | ||||||
| Male | 77 | 77.8 | 182 | 81.3 | 1 | |
| Female | 22 | 22.2 | 42 | 18.7 | 0.482 | 0.86 (0.48-1.53) |
| Age | ||||||
| ³ 55 years | 68 | 68.7 | 118 | 52.9 | 0.008 | 1.95 (1.18-3.21) |
| < 55 years | 31 | 31.3 | 105 | 47.1 | 1 | |
| Marital status | ||||||
| Married | 93 | 93.9 | 147 | 77.0 | < 0.001 | 4.64 (1.90-11.31) |
| Single | 6 | 6.1 | 44 | 23.0 | 1 | |
| Residence | ||||||
| Urban | 30 | 30.3 | 152 | 68.2 | 1 | |
| Rural | 69 | 69.7 | 71 | 31.8 | < 0.001 | 4.92 (2.94-8.22) |
| Education level† | ||||||
| Illiterate | 30 | 30.3 | 53 | 23.8 | 1 | |
| 1st-4th grade | 59 | 59.6 | 153 | 68.6 | 0.143 | 0.68 (0.39-1.16) |
| 5th-8th grade | 10 | 10.1 | 15 | 6.7 | 0.639 | 1.17 (0.47-2.94) |
| High school | 0 | 0.0 | 2 | 0.9 | 0.286 | 0.69 (0.61-0.79) |
*Chi-square test; †There were no subjects with university education among either the cases or the controls; OR = odds ratio; CI = confidence interval.