Suicidal ideation and attempts in population-based samples of women: temporal changes between 1989 and 2015

BMC Public Health

Table 1 Screening and interview stages of WAG 1986 to 2015: study population, weighted and unweighted numbers and prevalence (%)

Stage1: Screening questionnaire and stratified sample invited to interview					Stage 2: Completed long baseline and follow-up interviews: weighted and unweighted numbers (Completed interviews unweighted Total N = 2072)
Unweighted numbers and %					W1. 1989–1991 Baseline		W2. 1994–1998 Baseline and follow-up		W3.2000–2002 Baseline and follow-up		W4.2013–2015 Baseline and follow-up
					20–30 years: weighted N = 352		20–30 years: weighted N = 2240		20–30 years: weighted N = 2089		20–30 years: N=171 ^b
					20–30 years: weighted N = 352		20–30 years: weighted N = 2240		31–49 years: weighted N = 216		31–49 years: weighted N = 1344
Year of birth	Screening year	Mailed screening questionnaire	Response rate	Invited to interview	Unweighted	Weighted	Unweighted	Weighted	Unweighted	Weighted	Unweighted	Weighted
Year of birth	Screening year	N	n (%)	n	n (%)	n	n (%)	n	n (%)	n	n (%)	n
1965	1986	673	457 (67.9)	128	95 (74.2)^a	352	85	349	53	216	31	165
1970, 1975	1995	2910	2247 (77.2)	829	NA		543 (66.0)^a	1891	415	1604	244	920
1980	2000	1103	829 (75.2)	491	NA		NA		284 (57.8)^a	485	151	259
1993	2013	1687	572 (33.9)	568	NA		NA		NA		171 (30.1)^a	NA^b

NA Not Applicable, not selected for interview
^aBaseline interview
^bCohort born in 1993 was not stratified for interview and therefore not weighted. Numbers and % are presented with real numbers and %

ISSN: 1471-2458