Table 4

 Amount of use of permitted drugs in current users

Values are n (%).
Anti-inflammatory drugs (623/639 current users)
    ⩽10 days/year168 (27)
    11–30 days/year189 (30)
    31–60 days/year132 (21)
    >60 days/year134 (22)
Analgesics (210/243 current users)
    ⩽10 days/year95 (45)
    11–30 days/year65 (31)
    31–60 days/year35 (17)
    >60 days/year15 (7)
Supplements (533/614 current users)
    Daily423 (79)
    Twice a day83 (16)
    >Twice a day26 (5)
Vitamins (266/310 current users)
    ⩽120 days/year192 (72)
    121–365/year65 (24)
    >365/year9 (4)