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Table 1 Average peak cough flow values (L/min) in men and women according to age

From: Evaluation of peak cough flow in Brazilian healthy adults

Age (years) Men - Mean ± SD (n) Women - Mean ± SD (n)
18 499 ± 51 (10) 355 ± 31 (10)
19 486 ± 48 (10) 320 ± 29 (10)
20 484 ± 47 (10) 327 ± 34 (10)
21 435 ± 49 (10) 314 ± 28 (10)
22 428 ± 36 (10) 313 ± 25 (10)
23 407 ± 39 (10) 313 ± 34 (10)
24 406 ± 43 (10) 302 ± 33 (10)
25 494 ± 34 (10) 302 ± 31 (10)
26 486 ± 37 (10) 310 ± 30 (10)
27 484 ± 45 (10) 304 ± 24 (10)
28 439 ± 35 (10) 298 ± 23 (10)
29 430 ± 41 (10) 297 ± 31 (10)
30 426 ± 44 (10) 296 ± 38 (10)
31 410 ± 39 (10) 286 ± 25 (10)
32 399 ± 32 (10) 295 ± 36 (10)
33 380 ± 41 (10) 285 ± 21 (10)
34 380 ± 33 (10) 282 ± 29 (10)
35 376 ± 32 (10) 280 ± 34 (10)
36 381 ± 43 (10) 278 ± 35 (10)
37 360 ± 33 (10) 279 ± 21 (10)
38 347 ± 49 (10) 262 ± 30 (10)
39 337 ± 39 (10) 258 ± 23 (10)
40 316 ± 38 (10) 242 ± 34 (10)
  1. N=number of people; l/min=litters per minute; SD=standard deviation.