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Table 1 Response rates by age and gender for the NFAS-4 and the NFAS-5 (N = 3325)

From: A randomised comparison of a four- and a five-point scale version of the Norwegian Function Assessment Scale

  NFAS-4 NFAS-5
  N (%) Response rate % N (%) Response rate %
Females 905 (55.9) 60.0 919 (53.9) 58.8
Males 715 (44.1) 48.0 786 (46.1) 50.8
All 1620 54.0 1705 54.8
Age:     
   24–26 150 (9.3) 33.3 169 (9.9) 37.6
   34–36 429 (26.5) 49.9 521 (30.6) 53.7
   44–46 301 (18.6) 54.2 301 (17.7) 54.2
   54–56 358 (22.1) 68.4 327 (19.2) 62.5
   64–66 219 (13.5) 66.2 239 (14.0) 72.2
   74–76 132 (8.1) 66.8 120 (7.0) 60.8
   84–86 31 (1.9) 37.8 28 (1.6) 34.1