Table 1.
Demographic characteristics of the study cohort.
| Variables | No. of Subjects | Follow-up Person-Years | No. of Death from Non-Hodgkin’s Lymphoma | Mortality Rate (per 100,000 Person-Years) |
|---|---|---|---|---|
| Age at Recruitment (1st birth) | ||||
| ≤23 | 551,759 | 15,312,470.08 | 149 | 0.97 |
| >23 | 740,703 | 19,667,775.92 | 263 | 1.34 |
| Parity | ||||
| 1 | 157,207 | 4,170,772.33 | 68 | 1.63 |
| 2 | 564,727 | 15,124,112.33 | 174 | 1.15 |
| 3+ | 570,528 | 15,685,361.33 | 170 | 1.08 |
| Marital Status | ||||
| Married | 1,260,615 | 34,115,479.25 | 399 | 1.17 |
| Not married | 31,847 | 864,766.75 | 13 | 1.50 |
| Years of Schooling | ||||
| ≤9 years | 722,518 | 19,850,938.17 | 225 | 1.13 |
| >9 years | 569,944 | 15,129,307.83 | 187 | 1.24 |
| Birth Place | ||||
| Hospital/clinic | 1,245,925 | 33,638,862.83 | 390 | 1.16 |
| Home/other | 46,537 | 1,341,383.17 | 22 | 1.64 |