Descriptive statistics for walking and timed get up and go (TUG) speed by age group and gender in each HALCyon cohort.

Note: LBC1921 = Lothian Birth Cohort 1921; HAS = Hertfordshire Ageing Study; HCS = Hertfordshire Cohort Study; CaPS = Caerphilly Prospective Study; ABC1936 = Aberdeen Birth Cohort 1936; ELSA = English Longitudinal Study of Ageing.a: 63–64 y in HAS and Boyd Orr; 61–64 y in HCS;b: 65–68 y in ABC1936;c: 72–74 y in HAS;d: 77–80 y in LBC1921;e: 80–83 y in HAS; 80–82 y in Boyd Orr.*Approximate number of men (M) and women (W) study participants in each age category (Ns vary slightly between different capability measures and so those presented are for the sample with data on at least one of the capability measures unless the different capability measures have been assessed in different waves or on slightly different sub-samples):HAS: 72–74 y: M = 58, W = 36; 75–79 y: M = 106, W = 81; 80–83 y: M = 9, W = 4.HCS: 61–64 y: M = 201, W = 257; 65–69 y: M = 630, W = 705; 70–74 y: M = 259, W = 254.ELSA: 60–64 y: M = 606, W = 744; 65–69 y: M = 600, W = 689; 70–74 y: M = 508, W = 587; 75–79 y: M = 395, W = 481; 80–84 y: M = 227, W = 351; 85–89 y: M = 89, W = 148; 90+y: M = 29, W = 45.ABC1936: 62–64 y: M = 144, W = 161; 65–68 y: M = 100, W = 99.CaPS: 65–69 y: M = 307; 70–74 y: M = 440; 75–79 y: M = 325; 80+y: M = 79.Boyd Orr: 63–64 y: M = 11, W = 17; 65–69 y: M = 69, W = 98; 70–74 y: M = 72, W = 68; 75–79 y: M = 26, W = 37; 80–82 y: M = 4, W = 3.