These variables include:

• attention deficit disorder (VIT1PADD)

• excessive alcohol or tobacco use (VIT1PALCTOB)

• angina (VIT1PANGINA)

• anxiety (VIT1PANX)

• arthritis (VIT1PARTH)

• asthma (VIT1PASTH)

• autism (VIT1PAUT)

• back pain or problem (VIT1PBACPAIN)

• bipolar disorder (VIT1PBIPOL)

• birth defect (VIT1PBIRTHD)

• anemia and blood disorders--adults (VIT1PBLOOD)

• cancer (VIT1PCANC)

• chronic bronchitis (VIT1PCBRON)

• cholesterol (VIT1PCHOL)

• head or chest cold (VIT1PCOLD)

• constipation needing medication (VIT1PCONST)

• coronary heart disease (VIT1PCORON)

• other nerve damage, including carpal tunnel syndrome (VIT1PCTS)

• benign tumors or cysts (VIT1PCYST)

• dementia, including Alzheimer's disease (VIT1PDEMENT)

• dental pain (VIT1PDENPAIN)

• depression (VIT1PDEPRES)

• diabetes (VIT1PDIAB)

• emphysema (VIT1PEMPH)

• excessive sleepiness during the day (VIT1PESLEEPY)

• fibromyalgia (VIT1PFIBRO)

• influenza or pneumonia (VIT1PFLU)

• fracture, bone or joint injury (VIT1PFRACT)

• gout (VIT1PGOUT)

• gum disease (VIT1PGUM)

• gynecologic problem (VIT1PGYN)

• heart attack (VIT1PHATT)

• hay fever (VIT1PHAY)

• hearing problem (VIT1PHEAR)

• hernia (VIT1PHERN)

• hypertension (VIT1PHYPER)

• inflammatory bowel disease (VIT1PINFB)

• insomnia (VIT1PINSOM)

• stomach or intestinal illness (VIT1PINTEST)

• irritable bowel (VIT1PIRRB)

• jaw pain (VIT1PJAWPAIN)

• joint pain or stiffness/other joint condition (VIT1PJNTPAIN)

• weak or failing kidneys (VIT1PKIDNEY)

• poor circulation in legs (VIT1PLCIRC)

• liver problem (VIT1PLIVER)

• lupus (VIT1PLUPUS)

• mania or psychosis (VIT1PMANIA)

• memory loss or loss of other cognitive function (VIT1PMEMLOS)

• menopause (VIT1PMENOP)

• menstrual problems (VIT1PMENST)

• migraine or severe headache (VIT1PMIG)

• missing limbs (fingers, toes or digits), amputee (VIT1PMLIMB)

• neck pain or problem (VIT1PNECPAIN)

• circulation problems (other than in the legs) (VIT1PNLCIRC)

• other allergies--adults (VIT1POALLA)

• other developmental problem (VIT1PODD)

• other heart condition or disease (VIT1POHART)

• other infectious diseases (VIT1POINF)

• other injury (VIT1POINJ)

• knee problems (not arthritis, not joint injury) (VIT1POKNEE)

• other lung or breathing problem (VIT1POLUNG)

• other musculoskeletal problem (VIT1POMUSC)

• osteoporosis, tendinitis (VIT1POSTEO)

• phobias (VIT1PPHOBIA)

• polio (myelitis), paralysis, para/quadriplegia (VIT1PPOLIO)

• prostate trouble or impotence (VIT1PPROST)

• acid reflux (VIT1PREFLUX)

• regular headaches (VIT1PREGHEAD)

• mental retardation (VIT1PRET)

• Rheumatoid arthritis (VIT1PRHEUM)

• schizophrenia (VIT1PSCHIZ)

• seizures (VIT1PSEIZ)

• senility (VIT1PSENILE)

• sinusitis (VIT1PSINUS)

• skin problems--adults (VIT1PSKINA)

• sprain or strain (VIT1PSPRAIN)

• stress (VIT1PSTRESS)

• stroke (VIT1PSTROKE)

• substance abuse, other than alcohol or tobacco (VIT1PSUBST)

• ulcer (VIT1PULCER)

• urinary problem (VIT1PURIN)

• varicose veins, hemorrhoids (VIT1PVEIN)

• vision problem (VIT1PVISION)

• weight problem (VIT1PWEIGHT)

• other (VIT1POTH1, VIT1POTH2, VIT1POTH3)

The aforementioned variables indicating which conditions respondents prevented via a first vitamin supplement provide a "yes" or "no" response for each condition.

For sample adults who took a second vitamin supplement in the past 30 days to prevent a specific condition (VIT2PREV), parallel information was collected on the conditions respondents tried to prevent with that second vitamin supplement. (See, for example, VIT2PADD.)

These include:

• Condition for which 1st vitamin supplement was taken to prevent most (VIT1PMOST)

• Condition count for 1st vitamin supplement used to prevent a condition (VIT1PCONNO)

Researchers may also be interested in the following related variables:

• Took 1st herbal supplement to prevent specific health problem (HER1PREV)

• Took 2nd herbal supplement to prevent specific health problem (HER2PREV)

• Took 1st vitamin supplement to treat specific health problem (VIT1TREAT)

• Took 2nd vitamin supplement to treat specific health problem (VIT2TREAT)

• Took 1st herbal supplement to treat specific health problem (HER1TREAT)

• Took 2nd herbal supplement to treat specific health problem (HER2TREAT)

• Took vitamins or minerals to treat specific health problem, past 12 months (VITYTREAT)

• Took herbal supplements to treat specific health problem, past 12 months (HERYTREAT)