Table 1: Absence of association between other variables and back pain severity

Variable Present N Back pain severity (0 Ė 10) p-valuea
Demographics
Age - - Spearmanís rho = - 0.01 0.95
BMI - - Spearmanís rho = 0.23 0.07
Parous Yes 24 4.8 +/- 3.1 0.82
No 38 4.9 +/- 3.1
History of trauma to the pelvis Yes 29 5.4 +/- 2.9 0.17
No 32 4.4 +/- 3.1
Endometriosis
Laparoscopically diagnosed Yes 23 5.5 +/- 3.2 0.19
No 40 4.6 +/- 3.0
Symptoms Yes 53 4.8 +/- 3.2 0.72
No 6 5.6 +/- 2.4
Non-dysmenorrhea chronic pelvic pain Yes 56 5.1 +/- 3.0 0.64
No 4 4.0 +/- 4.2
Superficial dyspareunia Yes 31 5.1 +/- 3.2 0.70
No 17 4.7 +/- 3.1
Deep dyspareunia Yes 44 5.3 +/- 3.3 0.25
No 8 4.1 +/- 1.7
Bowel symptoms Yes 46 5.4 +/- 3.0 0.07
No 17 3.7 +/- 3.0
Bladder symptoms Yes 43 5.2 +/- 3.0 0.44
No 20 4.4 +/- 3.2
Signs
Abdominal wall pain Yes 50 4.8 +/- 3.0 0.60
No 12 5.3 +/- 3.4
Bladder base tenderness Yes 26 4.7 +/- 2.5 0.42
No 35 5.1 +/- 3.3
Pelvic floor tenderness Yes 33 4.9 +/- 2.7 0.71
No 28 5.0 +/- 3.4


aAll associations tested with the Mann-Whitney test, except for Spearman rank correlation for age and BMI