Table 1

Number of respondents and participation rates in Finland’s annual adult health behaviour survey, by study period, sex, and five year birth cohorts

	Study period	1978–81	82–84	85–87	88–90	91–93	94–96	97–99	2000–01	Total (n)
	Birth cohort
Men	1916–20	583	157							740
	1921–25	782	450	298	76					1606
	1926–30	919	509	404	438	254	35			2559
	1931–35	922	510	450	480	387	389	188		3326
	1936–40	943	541	455	500	477	437	434	217	4004
	1941–45	1127	641	543	531	496	485	496	330	4649
	1946–50	1383	853	715	698	675	679	613	428	6044
	1951–55	1162	742	650	654	578	556	511	385	5238
	1956–60	993	583	581	602	532	502	575	350	4718
	1961–65	637	532	621	615	542	541	474	355	4317
	1966–70	24	297	577	558	501	484	413	294	3148
	1971–75			118	396	501	457	393	237	2102
	1976–80					183	434	473	268	1358
Total (n)		9475	5815	5412	5548	5126	4999	4570	2864	43809
Response rate (%)		80	75	71	73	68	66	63	63	70
Women	Birth cohort
	1916–20	918	288							1206
	1921–25	854	660	397	105					2016
	1926–30	850	532	584	496	287	36			2785
	1931–35	813	479	500	493	492	400	165		3342
	1936–40	807	532	543	533	515	486	443	296	4155
	1941–45	891	574	610	599	569	550	553	342	4688
	1946–50	1218	771	744	794	731	737	716	483	6194
	1951–55	1063	697	688	703	686	641	627	454	5559
	1956–60	993	603	688	634	680	640	621	425	5284
	1961–65	698	570	651	647	599	603	586	384	4738
	1966–70	35	301	619	597	557	556	539	365	3569
	1971–75			114	425	530	499	490	296	2354
	1976–80					224	540	508	371	1643
Total (n)		9140	6007	6138	6026	5870	5688	5248	3416	47533
Response rate (%)		84	82	81	81	78	77	75	76	80