Table 1.

Distribution of overall gastric cancer and noncardia gastric cancer among members of the study cohort (men and women participating in the Nord-Trondelag Health Survey, 1984-1986) by baseline cohort characteristics

CharacteristicCohort members, n (%)Overall gastric cancer, n (%)Noncardia gastric cancer, n (%)
No. participants73,133 (100)313 (100)264 (100)
Females37,178 (51)126 (40)106 (40)
Males35,955 (49)187 (60)158 (60)
BMI (kg/m2)
    <18.51,006 (1)3 (1)2 (1)
    18.5-24.938,244 (52)138 (44)115 (43)
    ≥30.07,633 (10)39 (12)34 (13)
    Missing646 (1)4 (1)4 (2)
Smoking
    Never27,568 (38)118 (38)98 (37)
    Ever12,748 (17)66 (21)55 (21)
    Current20,107 (27)83 (27)73 (28)
    Missing12,710 (17)46 (15)38 (14)
Alcohol (drinking in last 2 wk)25,588 (35)89 (28)76 (29)
Education (y)
    ≤1050,251 (69)254 (81)217 (82)
    ≥135,859 (8)14 (4)12 (5)
    Missing13,463 (18)40 (13)33 (13)
Frequency of physical activity*
    <124,601 (34)124 (40)109 (41)
    114,574 (20)49 (16)40 (15)
    ≥220,922 (29)95 (30)78 (30)
    Missing13,036 (18)45 (14)37 (14)
Duration of physical activity
    <154,693 (6)38 (12)33 (13)
    15-3013,757 (19)58 (19)45 (17)
    30-6016,161 (22)47 (15)39 (15)
    ≥606,881 (9)27 (9)23 (9)
    Missing31,641 (43)143 (46)124 (47)
Intensity of physical activity
    Light23,894 (33)140 (45)116 (44)
    Moderate15,892 (22)36 (12)30 (11)
    Vigorous1,344 (2)3 (1)2 (1)
    Missing32,003 (44)134 (43)116 (44)
  • * Average number of occasions of recreational physical activity in a week.

  • Average duration of each occasion of physical exercise in minutes.