Table 2.

Determinants of responding physical therapists (online questionnaire)

	Private practices physical therapists	Nurse home physical therapists	National KNGF-data 2005
Respondents	n = 394	n = 74	n = 13.355
Sex (male)	49.2%	28.6%	49,4%
Age (average., SD), yr	41.8 (10.1)	35.5 (9.7)	43 yr
Work experience (average., SD), yr	17.9 (10.2)	11.7 (9.0)
Number of working hours/wk (median)	33 or more	25-32	36,7
Number of patients/wk (median)*	16-20	6-10	56
Number of used measurement instruments
1-2:	48%	29%
3-5:	36%	36%
6-10:	13%	28%
11-20:	3%	7%
≥ 21:	0%	n.a.
Number of used measurement instruments in
0 of every 5 treated patients:	14%	0%
1 of every 5:	33%	29%
2 of every 5:	17%	29%
3 of every 5:	17%	29%
4 of every 5:	11%	13%
5 of every 5:	8%	0%

yr = years; n = number of respondents; SD = standard deviation

KNGF = Royal Dutch Physiotherapy Society [30]

*A substantial number of responding physical therapists were working part-time.