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. 2015 Nov 12;10(11):e0142013. doi: 10.1371/journal.pone.0142013

Table 4. Demographic and baseline statistics by intervention group.

Leaflet only (n = 30) Physiotherapy/leaflet intervention (n = 29)
n n
Age (range, mean ± SD) 30 26 to 64, 44.23 ±11.23 29 26–64, 44.54 ±9.92
Gender (male: female) 30 16, 53 29 12, 41
Employment status 30 Employed 18 28* Employed 15
Self-employed 4 Self-employed 8
Unemployed 4 Unemployed 2
Retired 3 Retired 2
Housewife/husband 1 Other 1
Ethnic group 30 White Caucasian 27 28* White Caucasian 25
Other white background 2 Other white background 1
White/black Caribbean 1 Indian 2
Distance from hospital (mean miles ±SD) 30 12.59 ±5.5 29 15.83 ±9.28
Nature of surgery(planned:emergency) 28* 25:3 29 26:3
Duration of symptoms prior to surgery (mean months ±SD) 28* 80.99 ± 143.63 29 68.34 ±93.80
Back pain (number) 30 16 29 22
Leg pain (number) 30 29 29 27
Currently taking pain relief (yes:no) 30 19:11 28* 22:6
RMDQ (range, mean ±SD) 30 1 to 22, 10.07 ±5.58 29 0 to 23, 10.52 ±5.94
GPE (median, interquartile range) 30 2, 1 29 2, 1

* Missing data