Table 3.
White blood cell counts (cells/ml) for healthy workers
| |
Male |
Female |
||||
|---|---|---|---|---|---|---|
|
Age (years) |
Nonsmokers |
Smokers |
All |
Nonsmokers |
Smokers |
All |
| (n = 78 306) | (n = 85 153) | (n = 163 459) | (n = 27 883) | (n = 31 499) | (n = 59 382) | |
|
16–24 |
6555 (6509–6601)* |
7296 (7253–7339) |
7010 (6978–7042)1 |
6771 (6681–6861)* |
7391 (7317–7466) |
7168 (7109–7226) |
|
25–34 |
6456 (6434–6437)* |
7569 (7546–7592) |
7118 (7100–7135) |
6523 (6485–6561)* |
7292 (7257–7327) |
6995 (6968–7021) |
|
35–44 |
6436 (6416–6455)* |
7927 (7902–7953) |
7244 (7226–7261) |
6368 (6333–6404)* |
7441 (7401–7480) |
6973 (6944–7001) |
|
45–54 |
6512 (6491–6532)* |
8124 (8092–8155) |
7245 (7225–7265) |
6164 (6132–6196)* |
7421 (7372–7471) |
6699 (6670–6729) |
|
55–64 |
6600 (6572–6629)* |
7914 (7864–7965) |
7076 (7048–7103) |
5989 (5939–6040)* |
7235 (7126–7343) |
6313 (6264–6363) |
| >64 | 6518 (6358–6680) | 7410 (7132–7688) | 6744 (6600–6888) | 5987 (5677–6296) | 6821 (5489–8153) | 6058 (5758–6359) |
Values are means and 95% confidence intervals.
* Statistically significant differences between smokers and nonsmokers, for both males and females (t test for independent groups, P < 0.001).
n: Subject number.