Research Article

Health-Related and Psychosocial Factors Associated with Prostate Cancer Stage at Diagnosis among Males Participating in Alberta’s Tomorrow Project

Table 1

Characteristics of Alberta’s Tomorrow Project’s male participants diagnosed with prostate cancer, stratified by cancer stage at diagnosis (n = 410).

CharacteristicsStage I (n = 60)
n (%)
Stage II (n = 283)
n (%)
Stage III and IV (n = 67)
n (%)
Total (n = 410)
n (%)

Age at baseline (years)
 <5011 (2.7)42 (10.2)15 (3.7)68 (16.6)
 50–5928 (6.8)119 (29.0)27 (6.6)174 (42.4)
 60+21 (5.1)122 (29.8)25 (6.1)168 (41.0)
Age at diagnosis (years)
 <6015 (3.7)80 (19.6)17 (4.1)112 (27.3)
 60–6931 (7.6)136 (33.2)32 (7.8)199 (48.5)
 70+14 (3.4)67 (16.3)18 (4.4)99 (24.2)
Education
 High school diploma14 (3.4)79 (19.3)18 (4.4)111 (27.1)
 College30 (7.3)133 (32.4)32 (7.8)195 (47.6)
 University degree16 (3.9)71 (17.3)17 (4.2)104 (25.4)
Married or common-law
 Yes49 (12.0)247 (60.2)58 (14.2)354 (86.3)
 No11 (2.7)36 (8.8)−(2.2)56 (13.7)
Employment
 Yes44 (10.7)198 (48.2)45 (11.0)287 (70.0)
 No16 (3.9)85 (20.7)22 (5.4)123 (30.0)
Household income ($)
 <50 K12 (2.9)79 (19.3)20 (4.5)111 (27.1)
 50–100 K38 (9.3)130 (31.8)30 (7.3)198 (48.8)
 >100 K10 (2.4)73 (17.9)17 (4.2)100 (24.5)
Geography residence
 Rural16 (3.9)68 (16.6)23 (5.6)107 (26.1)
 Urban44 (10.7)215 (52.4)44 (10.7)303 (73.9)
First degree PCa family history
 Yes11 (2.7)55 (13.4)−(2.0)74 (18.1)
 No49 (12.0)228 (55.6)59 (14.4)336 (81.9)
Have ever had a digital rectal exam
 Yes52 (12.7)251 (61.2)59 (14.4)362 (88.3)
 No−(2.0)32 (7.8)−(2.0)48 (11.7)
Have ever had a PSA test
 Yes40 (9.8)160 (39.0)36 (8.8)236 (57.6)
 No29 (4.9)123 (30.0)31 (7.6)174 (42.4)
Have ever had a blood stool test
 Yes29 (7.1)100 (24.4)26 (6.3)155 (37.8)
 No31 (7.6)183 (44.6)41 (10.0)255 (62.2)
Have ever had a sigmoidoscopy or colonoscopy
 Yes18 (4.4)70 (17.1)15 (3.7)103 (25.1)
 No42 (10.2)213 (52.0)52 (12.7)307 (74.9)
Cancer grade
 129 (7.1)16 (3.9)0 (0)45 (11.0)
 230 (7.3)126 (30.7)14 (3.4)170 (41.5)
 30 (0)138 (33.7)50 (12.2)188 (45.9)
Gleason score
 658 (14.2)46 (11.2)−(0.2)105 (25.6)
 70 (0)93 (22.7)25 (6.1)118 (28.8)
 80 (0)15 (3.7)−(1.7)22 (5.4)
 90 (0)−(1.7)11 (2.7)18 (4.4)
 100 (0)0 (0)−(0.5)−(0.5)
 NA−(0.5)122 (29.8)21 (5.1)145 (35.4)
Type of smoker
Nonsmoker29 (7.1)113 (27.6)25 (6.1)167 (40.7)
 Past smoker26 (6.3)134 (32.7)34 (8.3)194 (47.3)
 Current smoker−(1.2)36 (8.8)−(2.0)49 (12.0)
Time spent in the sun 11 am–4 pm in June–August (hours)
 <148 (11.7)205 (50.0)51 (12.4)304 (74.2)
 ≥112 (2.9)78 (19.0)16 (3.9)106 (25.9)
Any stressful situations
 None36 (8.8)166 (40.5)39 (9.5)241 (58.8)
 ≥124 (5.8)117 (28.5)28 (6.8)169 (41.2)
Number of close friends and relatives you have, social support
 ≤1034 (8.3)213 (52.0)46 (11.2)293 (71.5)
 >1026 (6.3)70 (17.1)21 (5.1)117 (28.5)
Have any children
 Yes48 (11.7)251 (61.2)64 (15.6)363 (88.5)
 No12 (2.9)32 (7.8)−(0.7)47 (11.5)

Median (Q1–Q3)Median (Q1–Q3)Median (Q1–Q3)Median (Q1–Q3)

Age at baseline (years)56 (50–63)58 (53–63)57 (50–63)57 (52–63)
Distance to health centre by a vehicle (minutes)9 (4–16)8 (4–14)7 (3–13)8 (4–14)
Comorbidity index0 (0-1)0 (0-1)0 (0-1)0 (0-1)
Number of digital rectal exam in lifetime4 (2–6)4 (2–10)3 (1–8)4 (2–8)
Number of PSA blood tests in lifetime1 (0–4)1 (0–3)0 (0–2)1 (0–3)
Total recreational physical activity (MET hours/week)23.3 (4.9–39.9)24.3 (10.7–35.6)24.9 (13.5–36.0)24.9 (10.2–36.1)
Body mass index (kg/m2)26.7 (24.6–30.0)27.8 (25.6–30.9)28.0 (26.3–30.9)27.7 (25.5–30.9)
Abdominal circumference (cm)96.5 (90.4–108.0)101.8 (94.9–110.5)101.6 (96.0–113.0)101.6 (94.0–110.5)
Total dietary caloric intake (kcal/day)1931 (1469–2239)1931 (1522–2469)1931 (1510–2267)1931 (1505–2307)
Total alcohol intake (g/day)6.5 (1.7–13.8)7.2 (1.8–15.7)6.7 (1.9–15.7)7.1 (1.8–15.7)

Significant at  < 0.05,  < 0.01. “−” indicates number was <10 so cell entry suppressed. Comorbidity index: range (0–7). The range of the score of someone to take you to doctor if you needed it: 1: none of the time, 2: a little of the time, 3: some of the time, 4: most of the time, and 5: all of the time. Abdominal circumference was measured at one inch above the navel, even if this was not the usual waistline. PCa, prostate cancer; PSA, prostate-specific antigen.