Associations between asthma death and use of medical services factors (n = 1052)
| Odds ratio (95% CI)adjusted for sex | Mutually adjusted† odds ratio (95% CI) also adjusted for sex | Mutually adjusted† odds ratio (95% CI) also adjusted for sex and COPD‡§ | Mutually adjusted† odds ratio (95% CI) also adjusted for sex, drugs¶, COPD‡§ and psychosocial factors†† | |||||
|---|---|---|---|---|---|---|---|---|
| †Adjusted for the other two medical service factors in the table. | ||||||||
| ‡COPD defined as mention of COPD, COAD, chronic bronchitis or emphysema. | ||||||||
| §Also adjusted for obesity, age of onset (including missing data), prescribed home oxygen in the previous year and mention of wheelchair in the previous year. | ||||||||
| ¶Drugs are prescription of systemic steroids in the previous 3 months, antibiotics in the previous 3 months, and short acting β agonists in the previous 1–5 years. | ||||||||
| ††Psychosocial factors are financial/employment problems, drug/alcohol abuse, anxiety/prescribed antidepressants, sexual problems, psychosis, learning difficulties and repeated non-attendance/poor inhaler technique. | ||||||||
| *p<0.05, **p<0.01, ***p<0.001 (likelihood ratio test). | ||||||||
| No of GP contacts in the previous year (excluding home visits) | ||||||||
| Per 5 contacts | 0.82*** | (0.75 to 0.89) | 0.82*** | (0.74 to 0.91) | 0.79*** | (0.71 to 0.88) | 0.82 *** | (0.73 to 0.92) |
| No of home visits in the previous year | ||||||||
| Per visit | 1.11*** | (1.05 to 1.17) | 1.14*** | (1.08 to 1.21) | 1.12*** | (1.06 to 1.19) | 1.12 *** | (1.05 to 1.19) |
| No of PEF measurements in the previous 3 months | ||||||||
| Per occasion PEF taken | 0.80*** | (0.72 to 0.88) | 0.83*** | (0.74 to 0.92) | 0.83*** | (0.74 to 0.93) | 0.89 | (0.78 to 1.01) |