Questions | Initial | At time of insertion | Three months after insertion | P Value † | Initial | At time of insertion | Three months after insertion | P Value † |
Q1 Almost never Sometimes Often Almost always | 1 (5.0) 12 (60.0) 5 (25.0) 2 (10.0) | 0 (0.0) 15 (75.0) 5 (25.0) 0 (0.0) | 0 (0.0) 3 (15.0) 15 (75.0) 2 (10.0) | < 0.001* | 3 (15.0) 0 (0.0) 14 (70.0) 3 (15.0) | 3 (15.0) 4 (20.0) 11 (55.0) 2 (10.0) | 1 (5.0) 2 (10.0) 6 (30.0) 11 (55.0) | 0.002* |
Q2 Almost never Sometimes Often Almost always | 8 (40.0) 7 (35.0) 4 (20.0) 1 (5.0) | 3 (15.0) 11 (55.0) 5 (25.0) 1 (5.0) | 10 (50.0) 8 (40.0) 2 (10.0) 0 (0.0) | 0.001* | 6 (30.0) 10 (50.0) 2 (10.0) 2 (10.0) | 3 (15.0) 12 (60.0) 2 (10.0) 3 (15.0) | 12 (60.0) 7 (35.0) 1 (5.0) 0 (0.0) | < 0.001* |
Q3 Almost never Sometimes Often Almost always | 18 (90.0) 2 (10.0) 0 (0.0) 0 (0.0) | 16 (80.0) 3 (15.0) 1 (5.0) 0 (0.0) | 18 (90.0) 2 (10.0) 0 (0.0) 0 (0.0) | 0.165 | 11 (55.0) 6 (30.0) 3 (15.0) 0 (0.0) | 9 (45.0) 7 (35.0) 3 (15.0) 1 (5.0) | 15 (75.0) 5 (25.0) 0 (0.0) 0 (0.0) | 0.002* |
Q4 Almost never Sometimes Often Almost always | 10 (50.0) 9 (45.0) 1 (5.0) 0 (0.0) | 12 (60.0) 7 (35.0) 1 (5.0) 0 (0.0) | 11 (55.0) 9 (45.0) 0 (0.0) 0 (0.0) | 0.449 | 15 (75.0) 2 (10.0) 3 (15.0) 0 (0.0) | 13 (65.0) 5 (25.0) 0 (0.0) 2 (10.0) | 16 (80.0) 2 (10.0) 2 (10.0) 0 (0.0) | 0.104 |
Q5 Almost never Sometimes Often Almost always | 9 (45.0) 9 (45.0) 2 (10.0) 0 (0.0) | 9 (45.0) 9 (45.0) 2 (10.0) 0 (0.0) | 14 (70.0) 6 (30.0) 0 (0.0) 0 (0.0) | 0.044* | 13 (65.0) 3 (15.0) 3 (15.0) 1 (5.0) | 10 (50.0) 5 (25.0) 3 (15.0) 2 (10.0) | 11 (55.0) 7 (35.0) 2 (10.0) 0 (0.0) | 0.186 |
Q6 Almost never Sometimes Often Almost always | 5 (25.0) 14 (70.0) 1 (5.0) 0 (0.0) | 9 (45.0) 5 (25.0) 6 (30.0) 0 (0.0) | 0 (0.0) 6 (30.0) 10 (50.0) 4 (20.0) | < 0.001* | 3 (15.0) 9 (45.0) 7 (35.0) 1 (5.0) | 2 (10.0) 14 (70.0) 4 (20.0) 0 (0.0) | 0 (0.0) 4 (20.0) 7 (35.0) 9 (45.0) | < 0.001* |
Q7 Almost never Sometimes Often Almost always | 1 (5.0) 8 (40.0) 9 (45.0) 2 (10.0) | 1 (5.0) 14 (70.0) 4 (20.0) 1 (5.0) | 0 (0.0) 8 (40.0) 11 (55.0) 1 (5.0) | 0.038* | 3 (15.0) 4 (20.0) 6 (30.0) 7 (35.0) | 3 (15.0) 7 (35.0) 8 (40.0) 2 (10.0) | 0 (0.0) 4 (20.0) 6 (30.0) 10 (50.0) | < 0.001* |
Q8 Almost never Sometimes Often Almost always | 8 (40.0) 10 (50.0) 2 (10.0) 0 (0.0) | 3 (15.0) 14 (70.0) 2 (10.0) 1 (5.0) | 10 (50.0) 10 (50.0) 0 (0.0) 0 (0.0) | 0.001* | 15 (75.0) 2 (10.0) 3 (15.0) 0 (0.0) | 12 (60.0) 4 (20.0) 4 (20.0) 0 (0.0) | 15 (75.0) 5 (25.0) 0 (0.0) 0 (0.0) | 0.039* |
Q9 Almost never Sometimes Often Almost always | 5 (25.0) 11 (55.0) 4 (20.0) 0 (0.0) | 2 (10.0) 8 (40.0) 9 (45.0) 1 (5.0) | 9 (45.0) 10 (50.0) 1 (5.0) 0 (0.0) | < 0.001* | 13 (65.0) 4 (20.0) 2 (10.0) 1 (5.0) | 14 (70.0) 3 (15.0) 2 (10.0) 1 (5.0) | 14 (70.0) 4 (20.0) 2 (10.0) 0 (0.0) | 0.459 |
Q10 Almost never Sometimes Often Almost always | 1 (5.0) 4 (20.0) 11 (55.0) 4 (20.0) | 2 (10.0) 8 (40.0) 9 (45.0) 1 (5.0) | 0 (0.0) 5 (25.0) 8 (40.0) 7 (35.0) | 0.005* | 2 (10.0) 4 (20.0) 7 (35.0) 7 (35.0) | 3 (15.0) 4 (20.0) 11 (55.0) 2 (10.0) | 0 (0.0) 2 (10.0) 9 (45.0) 9 (45.0) | 0.001* |
Q11 Almost never Sometimes Often Almost always | 7 (35.0) 11 (55.0) 2 (10.0) 0 (0.0) | 2 (10.0) 12 (60.0) 6 (30.0) 0 (0.0) | 8 (40.0) 11 (55.0) 1 (5.0) 0 (0.0) | 0.004* | 13 (65.0) 4 (20.0) 2 (10.0) 1 (5.0) | 8 (40.0) 7 (35.0) 2 (10.0) 3 (15.0) | 13 (65.0) 6 (30.0) 1 (5.0) 0 (0.0) | 0.002* |
Q12 Almost never Sometimes Often Almost always | 9 (45.0) 8 (40.0) 3 (15.0) 0 (0.0) | 5 (25.0) 12 (60.0) 3 (15.0) 0 (0.0) | 13 (65.0) 7 (35.0) 0 (0.0) 0 (0.0) | 0.003* | 15 (75.0) 2 (10.0) 2 (10.0) 1 (5.0) | 11 (55.0) 6 (30.0) 1 (5.0) 2 (10.0) | 12 (60.0) 7 (35.0) 1 (5.0) 0 (0.0) | 0.192 |
Q13 Almost never Sometimes Often Almost always | 6 (30.0) 4 (20.0) 7 (35.0) 3 (15.0) | 3 (15.0) 4 (20.0) 11 (55.0) 2 (10.0) | 0 (0.0) 5 (25.0) 8 (40.0) 7 (35.0) | 0.002* | 3 (15.0) 7 (35.0) 6 (30.0) 4 (20.0) | 3 (15.0) 9 (45.0) 8 (40.0) 0 (0.0) | 0 (0.0) 4 (20.0) 7 (35.0) 9 (45.0) | < 0.001* |
Q14 Almost never Sometimes Often Almost always | 5 (25.0) 12 (60.0) 3 (15.0) 0 (0.0) | 2 (10.0) 13 (65.0) 4 (20.0) 1 (5.0) | 2 (10.0) 16 (80.0) 2 (10.0) 0 (0.0) | 0.161 | 9 (45.0) 8 (40.0) 0 (0.0) 3 (15.0) | 7 (35.0) 10 (50.0) 0 (0.0) 3 (15.0) | 14 (70.0) 4 (20.0) 2 (10.0) 0 (0.0) | < 0.001* |
Q15 Almost never Sometimes Often Almost always | 11 (55.0) 8 (40.0) 1 (5.0) 0 (0.0) | 7 (35.0) 11 (55.0) 2 (10.0) 0 (0.0) | 13 (65.0) 7 (35.0) 0 (0.0) 0 (0.0) | 0.012* | 16 (80.0) 1 (5.0) 1 (5.0) 2 (10.0) | 8 (40.0) 8 (40.0) 1 (5.0) 3 (15.0) | 12 (60.0) 6 (30.0) 2 (10.0) 0 (0.0) | 0.002* |
Q16 Almost never Sometimes Often Almost always | 1 (5.0) 11 (55.0) 6 (30.0) 2 (10.0) | 3 (15.0) 8 (40.0) 9 (45.0) 0 (0.0) | 0 (0.0) 8 (40.0) 8 (40.0) 4 (20.0) | 0.001* | 3 (15.0) 3 (15.0) 6 (30.0) 8 (40.0) | 3 (15.0) 5 (25.0) 9 (45.0) 3 (15.0) | 0 (0.0) 2 (10.0) 7 (35.0) 11 (55.0) | < 0.001* |
Q17 Almost never Sometimes Often Almost always | 6 (30.0) 10 (50.0) 4 (20.0) 0 (0.0) | 3 (15.0) 12 (60.0) 4 (20.0) 1 (5.0) | 13 (65.0) 4 (20.0) 3 (15.0) 0 (0.0) | 0.001* | 13 (65.0) 4 (20.0) 1 (5.0) 2 (10.0) | 10 (50.0) 8 (40.0) 1 (5.0) 1 (5.0) | 15 (75.0) 3 (15.0) 2 (10.0) 0 (0.0) | 0.045* |
Q18 Almost never Sometimes Often Almost always | 9 (45.0) 9 (45.0) 2 (10.0) 0 (0.0) | 4 (20.0) 13 (65.0) 2 (10.0) 1 (5.0) | 14 (70.0) 4 (20.0) 2 (10.0) 0 (0.0) | < 0.001* | 16 (80.0) 1 (5.0) 2 (10.0) 1 (5.0) | 12 (60.0) 6 (30.0) 2 (10.0) 0 (0.0) | 13 (65.0) 5 (25.0) 2 (10.0) 0 (0.0) | 0.687 |
Q19 Almost never Sometimes Often Almost always | 1 (5.0) 5 (25.0) 12 (60.0) 2 (10.0) | 1 (5.0) 8 (40.0) 11 (55.0) 0 (0.0) | 0 (0.0) 3 (15.0) 14 (70.0) 3 (15.0) | 0.002* | 3 (15.0) 3 (15.0) 4 (20.0) 10 (50.0) | 3 (15.0) 7 (35.0) 8 (40.0) 2 (10.0) | 0 (0.0) 3 (15.0) 4 (20.0) 13 (65.0) | < 0.001* |
Q20 Almost never Sometimes Often Almost always | 6 (30.0) 10 (50.0) 3 (15.0) 1 (5.0) | 4 (20.0) 11 (55.0) 2 (10.0) 3 (15.0) | 12 (60.0) 4 (20.0) 4 (20.0) 0 (0.0) | < 0.001* | 15 (75.0) 2 (10.0) 2 (10.0) 1 (5.0) | 8 (40.0) 9 (45.0) 2 (10.0) 1 (5.0) | 14 (70.0) 3 (15.0) 2 (10.0) 1 (5.0) | 0.020* |
STAI-Trait: Trait-Anxiety Inventory ‡ Values in parentheses are expressed as percentages † Friedman test. *Significant; P < 0.05 |