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. 2008 Dec 15;337:a2664. doi: 10.1136/bmj.a2664

Table 1.

 Description of groups at trial entry. Figures are number (percentage*) unless stated otherwise

Randomised participants Preference participants
Surgical Medical Surgical Medical
ITT (n=178) PP (n=111) ITT (n=179) PP (n=169) ITT (n=261) PP (n=218) ITT (n=192) PP (n=189)
Baseline questionnaire returned 175 (98) 111 (100) 174 (97) 165 (98) 256 (98) 216 (99) 189 (98) 186 (98)
Mean (SD) age (years) 46.7 (10.3) 46.3 (10.2) 45.9 (11.9) 45.9 (11.9) 44.4 (12.0) 44.5 (12.2) 49.9 (11.8) 50 (11.7)
Men 116 (65) 68 (61) 120 (67) 115 (68) 170 (65) 139 (64) 111 (58) 110 (58)
Mean (SD) BMI 28.5 (4.3) 28.7 (4.1) 28.4 (4.0) 28.3 (4.0) 27.7 (4.0) 27.5 (3.7) 27.4 (4.1) 27.4 (4.1)
Median duration (months) of prescribed medication for GORD (IQR) 33 (15-83) 30 (16-76) 31 (16-71) 30 (15-71) 35 (14-71) 36 (14-65) 27 (13-60) 26.5 (13-60)
In full time paid employment 116 (66) 72 (66) 110 (62) 104 (62) 168 (65) 138 (64) 100 (52) 97 (52)
Current smoker 46 (26) 29 (26) 40 (22) 36 (21) 71 (27) 61 (28) 39 (20) 39 (21)

ITT=intention to treat; PP=per protocol; BMI=body mass index; IQR=interquartile range.

*Calculated excluding missing data from returned forms.