Table 5.
AAT Serum Level, μmol/L |
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AAT Deficiency Category | Normal | Low |
Normal | 24.55 ± 2.81 | 18.60 ± 1.01 |
Phenotype combination | 75 PiMM | 4 PiMM |
Mild deficiency | 21.70 ± 0.28 | 17.34 ± 1.85 |
Phenotype combination | 2 PiMS | 4 PiMS, 1 PiSS |
Moderate deficiency | … | 14.18 ± 3.25ab |
Phenotype combination | … | 3 PiMZ, 1 PiSZ |
Data are presented as mean ± SD, unless otherwise indicated. See Table 1 and 4 legends for expansion of abbreviations.
P < .001 comparing mean serum AAT levels among AAT phenotype categories, Kruskal-Wallis test.
P < .001 comparing AAT deficiency phenotype combinations among workers with low vs normal AAT serum levels, Mann-Whitney U.