Association between exposure to chlorine and lung function (adjusted ml difference, 95% CI) at 15–30 days, Rome, 1998
| Parameter | Perception of exposure | Children | Adults | Total | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| n | ml difference5-151 | 95% CI | n | ml difference5-151 | 95% CI | n | ml difference5-151 | 95% CI | |||||||
| FVC5-150 | Not at all/a little | 44 | Reference | 47 | Reference | 91 | Reference | ||||||||
| A fair amount | 27 | 56 | −65 to177 | 38 | −204 | −434 to 26 | 65 | −49 | −175 to 76 | ||||||
| A lot | 8 | −110 | −300 to 80 | 17 | −204 | −502 to 95 | 25 | −140 | −315 to 35 | ||||||
| FEV1 5-150 | Not at all/a little | 44 | Reference | 47 | Reference | 91 | Reference | ||||||||
| A moderate amount | 27 | 79 | −49 to 207 | 38 | −156 | −336 to 25 | 65 | −17 | −130 to 95 | ||||||
| A lot | 8 | −109 | −310 to 93 | 17 | −275 | −510 to −40 | 25 | −178 | −334 to −22 | ||||||
| FEF25–75 5-150 | Not at all/a little | 44 | Reference | 47 | Reference | 91 | Reference | ||||||||
| A moderate amount | 27 | 23 | −310 to 356 | 38 | 24 | −495 to 543 | 65 | 27 | −272 to 326 | ||||||
| A lot | 8 | −78 | −594 to 438 | 17 | −245 | −904 to 415 | 25 | −165 | −574 to 243 | ||||||
↵5-150 The mean (SD) FVC, FEV1, and FEF25–75in the reference groups were respectively: 1902 (624) ml, 1654 (524) ml, 2037 (826) ml among children; 3662 (938) ml, 2978 (727) ml, 2948 (1320) ml among adults; 2819 (1191) ml, 2344 (919) ml, 2503 (1191) ml in the whole sample.
↵5-151 Difference (ml) in lung function variables between exposed people and the reference groups after adjustment for age, sex, height, BMI, history of chronic respiratory disease, instrument, physician, number of days since the accident and smoking among adults.