Table 4.
Time in weeks before diagnosis of first recorded breathless or wheeze symptom according to different searching scenarios (code alone vs code or text)
| Median (IQR) time from 1st breathless/wheeze code to diagnosis In weeks (phase 1) |
Median (IQR) time from earliest of 1st breathless/wheeze code or mention in text to diagnosis In weeks (phase 2) |
||
|---|---|---|---|
| Among (A) cases with code and (B) cases with code or mention in text | |||
| All with code | All with code or mention in text | ||
| IHD (n=39) | 47 (8, 188) | IHD (n=99) | 141 (42, 249) |
| COPD (n=71) | 44 (9, 139) | COPD (n=125) | 149 (44, 275) |
| Asthma (n=68) | 92 (19, 204) | Asthma (n=144) | 142 (32, 252) |
| All cases (n=178) | 57 (11, 169) | All cases (n=368) | 144 (38, 260) |
| Among cases with both code and text mention of symptoms | |||
| All with code AND mention in text | All with code AND mention in text | ||
| IHD (n=31) | 62 (14, 189) | IHD (n=31) | 208 (86, 274) |
| COPD (n=48) | 61 (12, 151) | COPD (n=48) | 185 (95, 276) |
| Asthma (n=50) | 164 (70, 234) | Asthma (n=50) | 240 (168, 312) |
| All cases (n=129) | 91 (21, 216) | All cases (n=129) | 213 (110, 284) |
COPD, chronic obstructive airways disease; IHD, ischaemic heart disease; RRR, relative risk ratios.