Table 5. PDRs research output in relation to their parents education: mean ± standard error and 95% confidence interval (brackets).

Education Level	Father (N = 188)	Mother (N = 188)
Primary	0.5±0.1 [0.2, 0.7]	0.5±0.1 [0.2, 0.7]
Secondary	0.8±0.1 [0.7, 1.0]	0.8±0.1 [0.7, 0.9]
University	0.7±0.1 [0.6, 0.8]	0.8±0.1 [0.7, 0.9]
Postgraduate	0.8±0.1 [0.6, 0.9]	0.7±0.1 [0.6, 0.9]

N indicates the sample size.