Table 1. Mannan-binding lectin (MBL) and surfactant protein-D (SP-D); study population divided by zygosity.

Zygosity	N (pairs)	Mean (μg/l)	SD (μg/l)	Correlation
MBL
″MZ	25	1662·8	1336·9	0·97*
″DZ	36	1289	1325·2	0·22*
SP-D
″MZ	26	621·9	255·1	0·87*
″DZ	36	826·3	507·3	0·66*

^*Correlations significant at 0·01 level.