Table 1 Study characteristics of cases and the sub-cohort from the Linxian General Population Nutrition Intervention Trial cohort, overall and by sex.
From: Prospective study of serum B vitamins levels and oesophageal and gastric cancers in China
Sub-cohort | OSCC | GCA | |
|---|---|---|---|
Number, total N (%) | 947 | 498 | 255 |
Men | 515 (54%) | 241 (48%) | 167 (65%) |
Women | 432 (46%) | 257 (52%) | 88 (35%) |
Age at baseline, mean (SD) | 58 (7.7) | 57 (7.8) | 58 (6.4) |
Men | 59 (6.8) | 58 (7.0) | 58 (6.1) |
Women | 56 (8.4) | 55 (8.3) | 56 (6.7) |
Cigarette smoking, N (%) yesa | 364 (38%) | 190 (38%) | 118 (46%) |
Men | 362 (70%) | 190 (79%) | 118 (71%) |
Women | 2 (<1%) | 0 (0%) | 0 (0%) |
Alcohol drinking, N (%) yesb | 200 (21%) | 112 (23%) | 58 (23%) |
Men | 172 (33%) | 95 (39%) | 51 (31%) |
Women | 28 (6%) | 17 (7%) | 7 (8%) |
BMI (kg/m2), mean (SD) | 21.8 (2.6) | 21.4 (2.4) | 21.6 (2.5) |
Men | 21.5 (2.1) | 21.6 (2.1) | 21.3 (2.0) |
Women | 22.1 (3.1) | 21.3 (2.6) | 22.1 (3.2) |
