Table 2

Multivariate probit model for cataracts

CovariateEstimated prevalence of cataracts from model (%)Parameter estimate (SE)RR95% CI
RR=relative risk, CI=confidence interval, SE=standard error.
Age at diagnosis (per year)0.15 (0.58)1.000.98 to 1.02
Exchangeable dependence (familial correlation)0.11 (0.15)
Type of NF2 mutation
    Nonsense or frameshift
    Classical NF245Reference groupReference group
    Somatic mosaic17−0.82 (0.18)0.200.10 to 0.40
    Splice site39−0.17 (0.19)0.710.34 to 1.50
    Missense28−0.48 (0.26)0.380.14 to 1.08
    Large deletion28−0.47 (0.23)0.390.16 to 0.98
    Unfound
        People with new mutations
            Age at onset <20 years39−0.15 (0.15)0.740.40 to 1.36
            Age at onset ⩾20 years9−1.20 (0.28)0.090.03 to 0.28
    Inherited cases36−0.23 (0.34)0.630.16 to 2.45