Table 2.
Missing data, means and end effects for NFAS-4 and NFAS-5 items (N = 3325)
| Missing % | Domain/item scores (mean) | Floor %a | Ceiling %a | ||||||
| NFAS-4 | NFAS-5 | NFAS-4 | NFAS-5 | NFAS-4 | NFAS-5 | NFAS-4 | NFAS-5 | ||
| Walking/standing | 1.25 | 1.37 | 61.1 | 62.1 | 0.2 | 0.2 | |||
| Standing | 1 | 3.0 | 2.6 | 1.19 | 1.29 | 84.9 | 83.2 | 0.3 | 0.2 |
| Walking less than a kilometre on flat ground | 2 | 4.6 | 3.5 | 1.19 | 1.30 | 87.5 | 84.3** | 1.6 | 1.6 |
| Walking than a kilometre on flat ground | 3 | 3.8 | 2.8 | 1.32 | 1.44 | 80.6 | 79.1 | 4.3 | 3.2 |
| Walking on different surfaces | 4 | 3.6 | 3.3 | 1.24 | 1.35 | 81.0 | 80.1 | 0.8 | 0.7 |
| Going up and down stairs | 5 | 2.5 | 2.1 | 1.33 | 1.48 | 75.0 | 73.6 | 1.0 | 0.3* |
| Going shopping for your groceries | 6 | 3.2 | 2.4 | 1.18 | 1.30 | 86.2 | 82.5** | 0.6 | 1.0 |
| Putting on your shoes and socks | 7 | 1.9 | 1.8 | 1.21 | 1.36 | 81.6 | 78.1* | 0.3 | 0.1 |
| Holding/picking up things | 1.14 | 1.23 | 67.5 | 67.5 | 0.1 | 0.1 | |||
| Picking up a coin from a table with your fingers | 8 | 2.5 | 1.9 | 1.10 | 1.17 | 91.6 | 89.5* | 0.1 | 0.2 |
| Holding and turning a steering wheel | 9 | 5.3 | 4.9 | 1.06 | 1.13 | 96.3 | 93.3*** | 0.9 | 1.6 |
| Driving a car | 10 | 6.1 | 4.9 | 1.14 | 1.24 | 93.0 | 90.3** | 3.2 | 4.1 |
| Preparing food | 11 | 2.5 | 2.0 | 1.10 | 1.16 | 92.3 | 89.9* | 0.8 | 0.7 |
| Writing | 12 | 2.2 | 1.7 | 1.11 | 1.18 | 90.9 | 88.9 | 0.2 | 0.4 |
| Performing everyday tasks on your own | 13 | 2.2 | 2.3 | 1.15 | 1.24 | 87.9 | 84.5** | 0.4 | 0.4 |
| Engaging in your leisure activities | 14 | 3.7 | 3.0 | 1.30 | 1.42 | 78.8 | 76.7 | 2.1 | 1.9 |
| Putting on and taking off your clothes | 15 | 2.2 | 1.9 | 1.13 | 1.20 | 88.7 | 86.1* | 0.3 | 0.2 |
| Lifting/carrying | 1.23 | 1.36 | 64.6 | 64.7 | 0.3 | 0.1 | |||
| Lifting an empty soda bottle crate from the floor | 16 | 2.6 | 2.0 | 1.15 | 1.23 | 90.5 | 87.6** | 1.7 | 1.3 |
| Carrying shopping bags in your hands | 17 | 2.4 | 1.8 | 1.23 | 1.31 | 82.1 | 82.1 | 1.1 | 0.6 |
| Carrying a little sack/backpack on your shoulders or back | 18 | 2.8 | 2.3 | 1.20 | 1.33 | 85.8 | 81.7** | 1.8 | 1.7 |
| Pushing and pulling with your arms | 19 | 3.0 | 1.9 | 1.31 | 1.43 | 76.0 | 75.8 | 1.1 | 1.1 |
| Cleaning your house | 20 | 3.0 | 2.1 | 1.33 | 1.50 | 75.2 | 72.8 | 1.6 | 1.6 |
| Washing your clothes | 21 | 3.3 | 2.9 | 1.16 | 1.29 | 88.6 | 83.9*** | 1.3 | 1.6 |
| Sitting | 1.10 | 1.19 | 87.0 | 82.2 | 0.1 | 0.1 | |||
| Sitting on a kitchen chair | 22 | 2.5 | 1.8 | 1.08 | 1.16 | 93.2 | 89.7*** | 0.2 | 0.2 |
| Riding as a passenger in a car | 23 | 3.5 | 2.6 | 1.06 | 1.12 | 95.2 | 91.6*** | 0.2 | 0.2 |
| Riding as a passenger on public transport | 24 | 4.5 | 3.2 | 1.15 | 1.25 | 90.8 | 86.9** | 2.1 | 1.9 |
| Managing | 1.25 | 1.43 | 53.2 | 46.3 | 0.1 | 0.0 | |||
| Staying alert and being able to concentrate | 25 | 2.7 | 2.2 | 1.26 | 1.40 | 77.3 | 72.7** | 0.2 | 0.4 |
| Working in groups | 26 | 9.0 | 6.2 | 1.18 | 1.33 | 86.4 | 80.6*** | 1.4 | 1.3 |
| Guiding others in their activities | 27 | 9.3 | 7.1 | 1.19 | 1.34 | 86.7 | 80.6*** | 2.0 | 1.8 |
| Managing everyday responsibility | 28 | 3.3 | 2.9 | 1.15 | 1.30 | 87.6 | 80.0*** | 0.2 | 0.5 |
| Managing everyday stress and strains | 29 | 3.3 | 2.5 | 1.33 | 1.53 | 72.5 | 66.1*** | 0.4 | 0.7 |
| Managing to take criticism | 30 | 4.3 | 2.9 | 1.34 | 1.54 | 72.0 | 63.6*** | 0.9 | 0.5 |
| Managing to control your anger and aggression | 31 | 2.2 | 1.9 | 1.29 | 1.49 | 74.4 | 65.2*** | 0.5 | 0.3 |
| Cooperation/communication | 1.18 | 1.32 | 58.7 | 49.8 | 0.0 | 0.1 | |||
| Remembering things | 32 | 2.5 | 1.9 | 1.42 | 1.67 | 63.5 | 55.3*** | 0.5 | 0.3 |
| Understanding spoken messages | 33 | 2.7 | 2.1 | 1.21 | 1.39 | 81.6 | 71.2*** | 0.3 | 0.1 |
| Understanding written messages | 34 | 2.5 | 1.9 | 1.07 | 1.16 | 94.0 | 88.4*** | 0.3 | 0.2 |
| Speaking | 35 | 2.3 | 1.9 | 1.07 | 1.17 | 93.7 | 87.6*** | 0.0 | 0.1 |
| Participating in a conversation with many people | 36 | 2.6 | 2.1 | 1.19 | 1.35 | 84.3 | 77.4*** | 0.7 | 0.5 |
| Using the telephone | 37 | 1.9 | 1.5 | 1.07 | 1.15 | 94.2 | 90.9*** | 0.2 | 0.4 |
| Senses | 1.05 | 1.09 | 94.7 | 91.3 | 0.0 | 0.0 | |||
| Watching television | 38 | 2.0 | 1.6 | 1.05 | 1.10 | 96.1 | 93.0*** | 0.0 | 0.1 |
| Listening to the radio | 39 | 2.0 | 1.9 | 1.04 | 1.09 | 96.8 | 94.0*** | 0.3 | 0.1 |
| Total score | 1.20 | 1.31 | 33.1 | 30.6 | 0.0 | 0.0 | |||
aEnd effects for the NFAS-4 and NFAS-5 are compared, * p < 0.05; ** p < 0.01; *** p < 0.001