Table 1.

Sample size, drop outs, rejoiners, survival rate (%) raw and net attrition rate (%).

Wave	No. indiv	Drop outs	Rejoiners	Survival rate	Raw attrition	Net attrition
Men
1	9464	–	–	–	–	–
2	8437	141	388	89.1%	14.9%	10.9%
3	8240	588	391	87.1%	7.0%	2.3%
4	8001	604	365	84.5%	7.3%	2.9%
5	7986	383	368	84.4%	4.8%	1.8%
6	7979	358	351	84.3%	4.5%	0.01%
Women
1	9897	–	–	–	–	–
2	8953	1204	260	90.5%	12.2%	9.5%
3	8840	371	258	89.3%	4.1%	1.3%
4	8553	561	274	86.4%	6.3%	3.2%
5	8608	215	270	87.0%	2.5%	−1.0%
6	8648	206	246	87.4%	2.4%	−0.04%

Notes: Drop outs are non-respondents at wave t and respondents and wave t−1. Rejoiners are respondents at wave t and non-respondents at wave t−1. Raw attrition rates exclude rejoiners. Net attrition rates include rejoinders. Table controls for item non-response in the physical activity and employment variables.