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Table 2 Mean physical function score * at 4 measurements by age group according to SES

From: Explanations of socioeconomic differences in changes in physical function in older adults: results from the Longitudinal Aging Study Amsterdam

  <70 years ≥70 years
  1992/1993 1995/1996 1998/1999 2001/2001 1992/1993 1995/1996 1998/1999 2001/2001
  n Mean (SD) n Mean (SD) N Mean (SD) n Mean (SD) N Mean (SD) n Mean (SD) n Mean (SD) n Mean (SD)
Education                 
   High 400 23.4 (2.1) 389 23.0 (2.6) 363 22.7 (3.0) 329 22.3 (3.2) 261 21.3 (4.2) 257 19.9 (5.1) 173 18.9 (6.0) 113 18.8 (5.8)
   Medium 419 23.1 (2.4) 412 22.5 (3.3) 370 22.5 (3.2) 323 21.8 (3.7) 310 20.8 (4.7) 305 19.8 (5.6) 233 18.8 (5.5) 145 18.7 (5.6)
   Low 442 22.4 (3.4) 425 21.9 (3.7) 388 21.2 (4.4) 339 20.6 (4.6) 531 19.1 (5.6) 510 17.8 (6.1) 345 16.6 (6.5) 219 15.7 (6.4)
Overall 1261 22.9 (2.7) 1226 22.5 (3.3) 1121 22.1 (3.6) 991 21.6 (3.9) 1102 20.1(5.2) 1072 18.8 (5.8) 751 17.8 (6.2) 477 17.4 (6.2)
Income                 
   High 552 23.4 (1.8) 543 23.1 (2.4) 499 22.9 (2.6) 457 22.4 (2.9) 248 20.9 (4.3) 246 19.9 (5.1) 177 18.8 (5.8) 113 18.8 (5.9)
   Medium 445 22.9 (2.7) 432 22.4 (3.1) 394 21.9 (3.6) 355 21.3 (4.1) 339 21.2 (4.3) 326 19.6 (5.4) 247 18.2 (6.3) 157 18.0 (6.0)
   Low 248 21.8 (4.0) 236 21.3 (4.7) 218 20.6 (5.0) 176 19.8 (5.2) 479 19.1 (5.8) 465 18.0 (6.1) 318 17.2 (6.1) 204 16.2 (6.1)
Overall 1245 22.9 (2.8) 1211 22.5 (3.3) 1111 22.1 (3.6) 988 21.6 (4.0) 1066 20.2 (5.1) 1037 19.0 (5.7) 742 17.9 (6.1) 474 17.4 (6.1)
  1. * Score ranged from 0 to 24, higher scores indicate better physical ability