Table 1.
Patient and ductal carcinoma in situ (DCIS) characteristics.
| All patients n = 377 |
Active surveillance n = 288 | Conventional treatment n = 89 |
||
|---|---|---|---|---|
| Age (median) | 59 | 59 | 57 | |
| n (%) | n (%) | n (%) | p-valuea | |
| Age | 0.188 | |||
| 45–54 55–64 65–74 75–84 |
134 (36) 125 (33) 109 (29) 9 (2) |
99 (34) 92 (32) 88 (31) 9 (3) |
35 (39) 33 (37) 21 (24) 0 |
|
| DCIS grade | 0.184 | |||
| Grade 1 Grade 2 Not yet registered |
126 (34) 146 (39) 105 (28) |
93 (32) 108 (38) 87 (30) |
33 (37) 38 (43) 18 (20) |
|
| DCIS size | 0.532 | |||
| < 20 mm 20–49 mm ≥ 50 mm Not yet registered |
190 (50) 45 (12) 13 (3) 129 (34) |
142 (49) 32 (11) 11 (4) 103 (36) |
48 (54) 13 (15) 2 (2) 26 (29) |
|
| Educational levelb | 0.015 | |||
| Low Intermediate High |
130 (35) 114 (30) 133 (35) |
110 (38) 85 (30) 93 (32) |
20 (22) 29 (33) 40 (45) |
|
| Employment status | 0.495 | |||
| Unemployed Working Retired |
75 (20) 227 (60) 75 (20) |
62 (22) 168 (58) 58 (20) |
13 (15) 59 (66) 17 (19) |
|
| Relationship status | 0.750 | |||
| Single In a relationship |
66 (18) 311 (83) |
52 (18) 236 (82) |
14 (16) 75 (84) |
|
| Smoking | 0.706 | |||
| Never Currently a smoker Not anymore |
174 (46) 47 (13) 155 (41) |
131 (46) 35 (12) 122 (42) |
43 (49) 12 (14) 33 (38) |
|
| Tolerance of uncertainty | 0.680 | |||
| High tolerance Low Tolerance |
278 (74) 99 (26) |
214 (74) 74 (26) |
64 (72) 26 (28) |
|
| HADS score for anxiety | 0.135 | |||
| Not elevated Elevated |
317 (84) 60 (16) |
247 (86) 41 (14) |
70 (79) 19 (21) |
|
Abbreviation: mm, millimetre.
a
p-values were calculated using Fisher’s exact tests.
b
Educational level was categorised in three levels: low level (i.e. elementary school, secondary vocational education), moderate level (i.e. high school, post-secondary vocational education) and high level (i.e. higher vocational education or university).