Table 1.

NSHAP Cohort 1 Survival and Yields by Sample Group at Round 3 (C1W3)

Sample group	Returning respondent sample	Survival rate	Responsea rate	Yield rateb	Completed interviews
R1 and R2	2,253	80%	93%	69%	1,554
Spouse/partner	951	87%	94%	77%	731
R2 (R1 NIR)	161	80%	78%	53%	86
R1 (R2 NIR)	132	85%	40%	28%	38
Total	3,497	82%	91%	69%	2,409

Note: NSHAP = National Social Life, Health, and Aging Project.

^aCompleted interviews/eligible respondents contacted (rounding may cause small differences).

^bCompleted interviews/total respondents contacted (rounding may cause small differences).