CODING MANUAL

			 SAS NAME: BSC1_7s

		       NUMBER OF DAYS BETWEEN
	      OFFSPRING  COHORT EXAM1 AND SUBSEQUENT EXAMS	
       		       SEX, AGE AT EACH EXAM		         
			 THROUGH EXAM 7
			
			# RECORDS = 5124


VARIABLE		DEFINITION
________		__________

IDTYPE			Cohort group identifier: Offspring cohort
			
ID			ID - Framingham ID number, 
			deleted - use random id 

SEX			1 = male, 2 = female


DAYS1_2   		NUMBER OF DAYS BETWEEN EXAM1 AND EXAM2
DAYS1_3   		NUMBER OF DAYS BETWEEN EXAM1 AND EXAM3
DAYS1_4   		NUMBER OF DAYS BETWEEN EXAM1 AND EXAM4
DAYS1_5   		NUMBER OF DAYS BETWEEN EXAM1 AND EXAM5
DAYS1_6   		NUMBER OF DAYS BETWEEN EXAM1 AND EXAM6
DAYS1_7   		NUMBER OF DAYS BETWEEN EXAM1 AND EXAM7


   	NOTE: The formula used to calculate age at nth exam:
           agen = int((daten-dob)/365.25), where date=date of exam


	age1		 5 - 70			Age at Offspring Exam 1
	age2		17 - 77			Age at Offspring Exam 2
	age3		18 - 77			Age at Offspring Exam 3
	age4		22 - 81			Age at Offspring Exam 4
	age5		26 - 84			Age at Offspring Exam 5
	age6		29 - 87			Age at Offspring Exam 6
	age7		33 - 90			Age at Offspring Exam 7


	NOTE: The formula used to calculate age at nth exam:
              agen = int((daten-dob)/365.25) 


	Number of attendees at each exam:

	Offspring Exam 1	5124
	Offspring Exam 2	3863
	Offspring Exam 3	3873
	Offspring Exam 4	4019
	Offspring Exam 5	3799
	Offspring Exam 6	3532
	Offspring Exam 7	3539