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. 2010 Mar 30;15(3):124–130. doi: 10.1186/2047-783X-15-3-124

Table 2.

Study group characteristics

Characteristic Working patients No reduced productivity Reduced productivity P value
total (WPS) (WPS)
N = 249 N = 97 N = 152
Mean age [years (± SD)] 48.9 (11.5) 49.9 (11.7) 48.2 (11.3) 0.75
Sex [n (%)]
 Male 109 (43.8) 46 (47.4) 63 (41.4) 0.36
 Female 140 (56.2) 51 (52.6) 89 (58.6)
Employment [n (%)]
 Full time 166 (66,7) 54 (55.7) 112 (73.7) 0.29
Symptom duration
 Mean [years (SD)] 7.3 (8.8) 9.1 (9.7) 6.1 (7.9) 0.01
 Median [years (inner quartile range(] 3.5 (7.9) 5.6 (10.1) 2.8 (6.2) n/a
Diagnosis (ICD 10) [n (%)]*
 K21 58 (23.3) 20 (20.6) 38 (25.0) 0.45
 K21.0 101 (40.6) 43 (44.3) 58 (38.2) 0.36
 K21.9 66 (26.5) 24 (24.7) 42 (27.6) 0.66
 R12 72 (28.9) 29 (29.9) 43 (28.3) 0.89
Proton pump inhibitor use [n (%)]
 Yes 222 (89.1) 86 (88.7) 136 (89.5) 0.83
Histamine-receptor-2 use use [n (%)]
 Yes 33 (13.3) 10 (10.3) 23 (15.1) 0.27

*Multiple diagnoses possible