Table 2

Microtubular arrangement in 510 patients with normal ciliary ultrastructure

Microtubular abnormalities considered to be within normal limits arrangement as observed in 510 patients with >200 profiles countedMean±SD % of ciliary cross-sections examined
Normal 9+2 arrangement91±8
Disarranged microtubules2±2
Extra microtubular doublet1±2
Single microtubular doublet<1±1
Transposition of central pair<1±1
One of pair missing1±6
Both of the central pair missing2±3
Compound cilium1±1