Table 2 Number of cases, concordant measures and intraclass correlations for the study measures
From: The relationships between IBS and perceptions of physical and mental health—a Norwegian twin study
Measure | Cases, N (%) | Concordant* pairs, n (%) | Discordant **pairs, n (%) | Probandwise concordance rate, % (95% CI) | Intraclass correlations (95% CI) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Total | m | f | MZ | DZ | MZ | DZ | MZ | DZ | MZ | DZ | |||
++ | − − | ++ | − − | ||||||||||
SRH | |||||||||||||
Physical | 987 (18.8) | 396 (17.2) | 591 (20.1) | 81 (8.1) | 677 (67.6) | 33 (3.6) | 618 (67.0) | 225 (22.5) | 256 (27.7) | 41.2 (35.7;48.0) | 20.5 (14.6;26.4) | 0.48 (0.43;0.52) | 0.07 (0.01;0.13) |
Mental | 376 (7.3) | 134 (6.0) | 242 (8.4) | 17 (1.7) | 821 (81.9) | 6 (0.7) | 753 (81.6) | 115 (11.5) | 101 (10.9) | 22.8 (13.8;31.8) | 10.6 (2.8;18.4) | 0.39 (0.33;0.44) | 0.14 (0.08;0.20) |
Health hinders activities | |||||||||||||
Physical | 742 (14.5) | 281 (12.6) | 461 (16.1) | 42 (4.2) | 699 (69.8) | 26 (2.8) | 645 (69.9) | 188 (18.8) | 187 (20.3) | 30.9 (23.7;38.0) | 21.8 (14.8;28.7) | 0.38 (0.32;0.43) | 0.20 (0.14;0.26) |
Mental | 326 (6.5) | 123 (5.6) | 203 (7.2) | 49 (4.9) | 786 (78.4) | 5 (0.5) | 738 (80.0) | 106 (10.6) | 76 (8.2) | 11.7 (3.8;19.5) | 11.6 (2.3;20.9) | 0.17 (0.11;0.23) | 0.23 (0.17;0.29) |
IBS | 575 (10.9) | 174 (7.5) | 401 (13.5) | 29 (2.9) | 15 (1.6) | 168 (16.8) | 175 (19.0) | 25.7 (18.1;33.2) | 14.6 (8.0;21.2) | 0.35 (0.29;0.40) | 0.10 (0.04;0.17) | ||