Table 9: Weighted average abundances of the FLAMES clusters. Results for the clusters NGC 6611, N11 and NGC 346 are taken from Paper III, except for the Fe abundances which were derived from LTE calculations following the method described in Sect. 5.3. Solar abundances are taken from Asplund et al. (2005). Abundances are presented as [X] = 12 + $\log$ ([X/H]) in units of dex.
    Milky Way   LMC   SMC
  Solar NGC 6611 NGC 3293 NGC 4755   N11 NGC 2004   NGC 346 NGC 330
N 7.78 $\pm$ 0.06 7.59 $\pm$ 0.10 7.52 $\pm$ 0.07 7.85 $\pm$ 0.26   7.54 $\pm$ 0.40 7.33 $\pm$ 0.36   7.17 $\pm$ 0.29 7.27 $\pm$ 0.24
O 8.66 $\pm$ 0.05 8.55 $\pm$ 0.04 8.76 $\pm$ 0.05 8.73 $\pm$ 0.18   8.33 $\pm$ 0.08 8.40 $\pm$ 0.18   8.06 $\pm$ 0.10 7.90 $\pm$ 0.19
Mg 7.53 $\pm$ 0.09 7.32 $\pm$ 0.06 7.24 $\pm$ 0.10 7.23 $\pm$ 0.12   7.06 $\pm$ 0.09 7.08 $\pm$ 0.10   6.74 $\pm$ 0.07 6.72 $\pm$ 0.12
Si 7.51 $\pm$ 0.04 7.41 $\pm$ 0.05 7.47 $\pm$ 0.06 7.41 $\pm$ 0.04   7.19 $\pm$ 0.07 7.21 $\pm$ 0.03   6.79 $\pm$ 0.05 6.81 $\pm$ 0.02
Fe 7.45 $\pm$ 0.15 7.62 $\pm$ 0.15 7.49 $\pm$ 0.21 7.56 $\pm$ 0.19   7.23 $\pm$ 0.10 7.24 $\pm$ 0.12   6.98 $\pm$ 0.13 6.88 $\pm$ 0.16

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