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Table 1 Characteristics of participants

From: Use of naproxen versus intracervical block for pain control during the 52-mg levonorgestrel-releasing intrauterine system insertion in young women: a multivariate analysis of a randomized controlled trial

Variables Naproxen Block P-value
Age 22.2 ± 2.0 22.2 ± 1.7 0.974
Race    0.438
 White skin 30 (69.2) 35 (68.6)  
 Skin of colour 19 (38.8) 16 (31.4)  
BMI (kg/m2) 23.2 ± 4.1 22.8 ± 3.6 0.228
Parity    0.498
 Nulliparous 41 (83.7) 45 (88.2)  
 Previous cesarean 1 (2.0) 0 (0.0)  
 Previous vaginal delivery 7 (14.3) 5 (9.8)  
 Any prior abortion 0 (0.0) 1 (2.0)  
Education    0.130
 Less than high school degree 6 (12.2) 2 (3.9)  
 High school degree 9 (18.4) 5 (9.8)  
 Some college or higher 34 (69.4) 44 (86.3)  
Dysmenorrhea    0.806
 Yes 19 (38.8) 21 (41.2)  
 No 30 (61.2) 30 (58.8)  
Uterine sounding (cm) 7.24 ± 0.67 7.28 ± 0.81 0.758