Table 4. Regression model estimating associations between diagnostic interval and individual conditions.
| Coeff. (95% CI) | P-value | Exponentiated coeff. (95% CI) | Diagnostic interval change in days (95% CI)a | |
|---|---|---|---|---|
|
'Competing demand' conditions | ||||
| Anxiety/depression | 0.11 (0.03, 0.20) | 0.007 | 1.12 (1.03, 1.22) | 9 (3, 17) |
| Asthma | 0.06 (−0.05, 0.16) | 0.284 | 1.06 (0.95, 1.18) | 5 (−4, 13) |
| Chronic kidney disease | 0.04 (−0.06, 0.13) | 0.450 | 1.04 (0.94, 1.14) | 3 (−4, 11) |
| COPD | 0.12 (−0.01, 0.25) | 0.075 | 1.13 (0.99, 1.28) | 10 (−1, 22) |
| Coronary heart disease | 0.18 (0.09, 0.27) | <0.001 | 1.20 (1.09, 1.31) | 15 (7, 24) |
| Dementia | −0.05 (−0.34, 0.24) | 0.722 | 0.95 (0.71, 1.27) | −4 (−22, 20) |
| Diabetes mellitus | 0.16 (−0.07, 0.39) | 0.164 | 1.18 (0.94, 1.48) | 14 (−5, 37) |
| Epilepsy | 0.04 (−0.07, 0.14) | 0.510 | 1.04 (0.93, 1.15) | 3 (−5, 12) |
| Heart failure | 0.11 (−0.03, 0.26) | 0.132 | 1.12 (0.97, 1.29) | 9 (−3, 23) |
| Hypertension | 0.04 (−0.03, 0.11) | 0.254 | 1.04 (0.97, 1.11) | 3 (−2, 9) |
| Osteoporosis | 0.00 (−0.16, 0.17) | 0.986 | 1.00 (0.85, 1.18) | 0 (−12, 14) |
| Rheumatoid arthritis | 0.23 (−0.02, 0.48) | 0.069 | 1.26 (0.98, 1.62) | 20 (−1, 48) |
|
'Aternative explanation' conditions | ||||
| Codeine therapy | 0.06 (−0.09, 0.22) | 0.423 | 1.07 (0.91, 1.24) | 5 (−7, 19) |
| Diverticulosis/diverticulitis | 0.17 (0.03, 0.30) | 0.015 | 1.18 (1.03, 1.35) | 14 (3, 27) |
| Endometriosis | −0.31 (−0.9, 0.28) | 0.299 | 0.73 (0.41, 1.32) | −21 (−46, 24) |
| Haemorrhoids | 0.02 (−0.07, 0.12) | 0.632 | 1.02 (0.93, 1.13) | 2 (−5, 10) |
| Irritable bowel syndrome | 0.11 (−0.02, 0.25) | 0.103 | 1.12 (0.98, 1.29) | 9 (−2, 22) |
| Warfarin therapy | 0.06 (−0.09, 0.22) | 0.409 | 1.07 (0.92, 1.24) | 5 (−6, 19) |
| Inflammatory bowel disease | 0.29 (0.16, 0.41) | <0.001 | 1.33 (1.18, 1.51) | 26 (14, 39) |
| Non-colorectal cancer | 0.11 (−0.05, 0.28) | 0.178 | 1.12 (0.95, 1.32) | 9 (−4, 25) |
Abbreviations: CI=confidence interval; COPD=chronic obstructive pulmonary disease.
a
Calculated using the geometric mean (as used by the log-tranformed regression model) of 76.71. This model controlled for age and gender. Conditions in bold were significantly associated with diagnostic interval.