Introduction
Method
Participants and procedure
Questionnaire measures
Group identifications
Contact-intensive groups
Depression
Demographic variables
Medical data
Antidepressant prescriptions
Statistical analyses
Results
Cross-tabular analyses
Group identifications | Depressed (self-rated) | Antidepressants | ||
---|---|---|---|---|
No | Yes | No | Yes | |
0 (n = 93) | 51 (55.43 %) | 41 (44.57 %) | 74 (79.57 %) | 19 (20.43 %) |
1 (n = 316) | 261 (82.86 %) | 54 (17.14 %) | 274 (87.26 %) | 40 (12.74 %) |
2 (n = 585) | 549 (94.33 %) | 33 (5.67 %) | 526 (90.53 %) | 55 (9.47 %) |
3 (n = 806) | 787 (97.64 %) | 19 (2.36 %) | 748 (93.15 %) | 55 (6.85 %) |
χ
2 (3, N = 1795) = 236.87; p < 0.001 Cramer’s V = 0.36, p < 0.001 | χ2 (3, N = 1791) = 23.45; p < 0.001 Cramer’s V = 0.11, p < 0.001 |
No. of group identifications | Depressed (self-rated) | Antidepressants | ||
---|---|---|---|---|
No | Yes | No | Yes | |
0 | 51 (55.43 %) | 41 (44.57 %) | 74 (79.57 %) | 19 (20.43 %) |
1, 2, or 3 | 1597 (93.78 %) | 106 (6.22 %) | 1548 (91.17 %) | 150 (8.83 %) |
χ
2 (1, N = 1795) = 170.65; p < 0.001
φ = −0.31, p < 0.001 |
χ
2 (1, N = 1791) = 13.87; p < 0.001
φ = −0.09, p < 0.001 | |||
1 | 261 (82.86 %) | 54 (17.14 %) | 274 (87.26 %) | 40 (12.74 %) |
2 or 3 | 1336 (96.25 %) | 52 (3.75 %) | 1274 (92.05 %) | 110 (7.95 %) |
χ
2 (1, N = 1703) = 78.94; p < 0.001
φ = −0.22, p < 0.001 |
χ
2 (1, N = 1698) = 7.29; p = 0.007
φ = −0.07, p = 0.007 | |||
2 | 549 (94.33 %) | 33 (5.67 %) | 526 (90.53 %) | 55 (9.47 %) |
3 | 787 (97.64 %) | 19 (2.35 %) | 748 (93.15 %) | 55 (6.85 %) |
χ
2 (1, N = 1388) = 10.29; p = 0.001
φ = −0.09, p = 0.001 |
χ
2 (1, N = 1384) = 3.16; p = 0.076
φ = −0.05, p = 0.076 |
Contact-intensive groups | Depressed (self-rated) | Antidepressants | ||
---|---|---|---|---|
No | Yes | No | Yes | |
0 (N = 642) | 558 (87.46 %) | 80 (12.54 %) | 566 (88.44 %) | 74 (11.56 %) |
1 (N = 545) | 506 (93.01 %) | 38 (6.99 %) | 491 (91.09 %) | 48 (8.91 %) |
2 (N = 343) | 332 (96.79 %) | 11 (3.21 %) | 317 (92.69 %) | 25 (7.31 %) |
3 (N = 174) | 170 (97.70 %) | 4 (2.30 %) | 160 (91.95 %) | 14 (8.05 %) |
χ2 (3, N = 1699) = 37.69; p < 0.001 Cramer’s V = 0.15, p < 0.001 | χ2 (3, N = 1695) = 5.73; p = 0.13 Cramer’s V = 0.06, p = 0.13 |
Logistic regression analyses
Assumptions
Analyses
Variable |
B
| SE | Wald statistic |
p
| Odds ratio | 95 % CI for odds ratio | |
---|---|---|---|---|---|---|---|
Lower | Upper | ||||||
Group identifications (0–3) | −1.16 | 0.12 | 87.52*** | <0.001 | 0.32 | 0.25 | 0.40 |
Contact-intensive groups (0–3) | −0.07 | 0.13 | 0.27 | 0.61 | 0.93 | 0.72 | 1.21 |
Education (0/1) | −0.69 | 0.21 | 11.48** | 0.001 | 0.50 | 0.33 | 0.75 |
Relationship status (0/1) | −0.72 | 0.21 | 11.90** | 0.001 | 0.49 | 0.33 | 0.73 |
Gender (0/1) | −0.19 | 0.21 | 0.86 | 0.35 | 0.83 | 0.55 | 1.24 |
Age (years) | −0.03 | 0.01 | 21.06*** | <0.001 | 0.97 | 0.96 | 0.98 |
Variable |
B
| SE | Wald statistic |
p
| Odds ratio | 95 % CI for odds ratio | |
---|---|---|---|---|---|---|---|
Lower | Upper | ||||||
Group identifications (0–3) | −0.36 | 0.10 | 12.65*** | <0.001 | 0.70 | 0.57 | 0.85 |
Contact-intensive groups (0–3) | −0.03 | 0.10 | 0.08 | 0.78 | 0.97 | 0.80 | 1.18 |
Education (0/1) | −0.05 | 0.18 | 0.09 | 0.77 | 0.95 | 0.67 | 1.35 |
Relationship status (0/1) | −0.57 | 0.18 | 9.96** | 0.002 | 0.57 | 0.40 | 0.81 |
Gender (0/1) | −0.66 | 0.19 | 12.59*** | <0.001 | 0.52 | 0.36 | 0.74 |
Age (years) | −0.002 | 0.01 | 0.07 | 0.79 | 1.00 | 0.99 | 1.01 |