These data have to do with children living in the 
vicinity of a smelter.

      IDENTIFICATION NUMBER

      RECORD NUMBER

      AREA - RESIDENCE ON AUG'72
       1=0-1 MILES FROM SMELTER
       2=1-2.5 MILES
       3=2.5-4.1 MILES

      AGE E.G. 1011=10 YEARS 11 MONTHS

      SEX  1=MALE  2=FEMALE


      INF - INFORMATION SUBTEST IN WISC AND WPPSI

      COMP - COMPREHENSION SUBTEST IN WISC AND WPPSI

      AR - ARITHMETIC SUBTEST IN WISC AND WPPSI

      DS - DIGIT SPAN SUBTEST(WISC) AND SENTENCE
           COMPLETION(WPPSI)

      V/RAW - RAW SCORE/VERBAL IQ (THIS IS TOTAL OF
              SCORES 5-8)

      PC - PICTURE COMPLETION SUBTEST IN WISC AND WPPSI

      BD - BLOCK DESIGN SUBTEST IN WISC AND WPPSI

      OA - OBJECT ASSEMBLY SUBTEST(WISC), ANIMAL HOUSE
           SUBTEST(WPPSI)

      COD - CODING SUBTEST(WISC), GEOMETRIC DESIGN
            SUBTEST(WPPSI)

      P/RAW - RAW SCORE/PERFORMANCE IQ (TOTAL OF SCORES
              IN 10-13)

      HH/INDEX - HOLLINGSHEAD INDEX OF SOCIAL STATUS

      IQV - VERBAL IQ

      IQP - PERFORMANCE IQ

      IQF - FULL SCALE IQ (NOT SUM OR AVERAGE OF IQV
            AND IQP)

      TYPE OF IQ TEST   1=WISC  2=WPPSI
       (WISC USUALLY GIVEN TO CHILDREN GE 5 YRS 1 MONTH
        OF AGE
        WPPSI USUALLY GIVEN TO CHILDREN LE 5YRS OF AGE)


      lead_typ (LEAD TYPE - BLOOD LEAD LEVEL GROUP)

       1=BLOOD LEAD LEVELS BELOW 40 MICROGRAMS/100ML IN
         BOTH 1972 & 1973
       2=BLOOD LEAD LEVELS GREATER THAN OR EQUAL TO
         40 MICROGRAMS/100ML
         IN BOTH 72 & 73 OR A LEVEL GREATER THAN OR
         EQUAL TO 40
         IN 73 ALONE (3 CASES ONLY)
       3=BLOOD LEAD LEVELS GREATER THAN OR EQUAL TO
         40 MICROGRAMS/100ML
         IN 72 AND LESS THAN 40 IN 73

      LD72 - BLOOD LEAD VALUES (MICROGRAMS/100ML ) IN72

      LD73 - BLOOD LEAD VALUES (MICROGRAMS/100ML ) IN 73

      FST2YRS - DID CHILD LIVE FOR 1ST 2 YRS WITHIN
       1 MILE OF SMELTER

      TOTYRS - TOTAL NUMBER OF YEARS SPENT WITHIN
       4.1 MILES OF SMELTER


      IDENTIFICATION NUMBER

      RECORD NUMBER

    IN SYMPTOM DATA (AS REPORTED BY PARENTS)

      PICA   1=YES  2=NO

      COLIC  1=YES  2=NO

      CLUMSINESS  1=YES  2=NO

      IRRITABILITY  1=YES  2=NO

      CONVULSIONS  1=YES  2=NO

    IN NEUROLOGICAL TEST DATA
    NG THERE IS A -1.

    fwt_r
      # OF TAPS FOR RIGHT HAND IN THE 2-PLATE TAPPING
       TEST  (#TAPS IN ONE 10 SECOND TRIAL)

    fwt_l
      # OF TAPS FOR LEFT HAND IN THE 2-PLATE TAPPING TEST
         (#TAPS IN ONE 10 SECOND TRIAL)

      VISUAL REACTION TIME RIGHT HAND (MILLISECONDS)

      VISUAL REATION TIME LEFT HAND (MILLISECONDS)

      AUDITORY REACTION TIME RIGHT HAND (MILLISECONDS)

      AUDITORY REACTION TIME LEFT HAND (MILLISECONDS)

      FINGER-WRIST TAPPING TEST RIGHT HAND
       (# TAPS IN ONE 10 SECOND TRIAL)

      FINGER-WRIST TAPPING TEST LEFT HAND
       (#TAPS IN ONE 10 SECOND TRIAL)

      WWPS - WERRY-WEISS-PETERS SCALE FOR HYPERACTIVITY
       0=NO ACTIVITY . . . . 4=SEVERLY HYPERACTIVE
       (AS REPORTED BY PARENTS)