Table 3.

Logistic regression analysis of associated factors of NE in children ages 5–12 years

Factors		B	SE	Wals	P	OR	95% CI
Gender	Male					1(ref)
	Female	−0.444	0.145	9.416	0.002	0.641	0.483–0.852
Age	–	−0.173	0.037	21.492	< 0.001	0.841	0.782–0.905
Delivery mode	Natural labor					1(ref)
	Caesarean birth	0.222	0.137	2.629	0.105	1.248	0.955–1.632
Duration of using DD	Never use					1(ref)
	0-1 year	0.121	0.278	0.188	0.665	1.128	0.654–1.947
	> 1 but ≤2 years	0.734	0.267	7.575	0.006	2.084	1.235–3.516
	> 2 but ≤3 years	0.856	0.319	7.208	0.007	2.354	1.260–4.399
	> 3 but ≤4 years	2.055	0.419	24.080	< 0.001	7.806	3.435–17.737
	> 4 years	3.119	0.503	38.471	< 0.001	22.624	8.444–60.620
Toilet training onset time	< 6 months of age					1(ref)
	6-12 months of age	0.257	0.167	2.369	0.124	1.293	0.932–1.795
	13-18 months of age	0.011	0.222	0.003	0.959	1.011	0.655–1.562
	> 18 months of age	−0.048	0.418	0.013	0.909	0.953	0.420–2.164
	Never training	0.557	0.240	5.376	0.020	1.745	1.090–2.793
Drinking plain water and eating fruits before bed	No					1(ref)
	Yes	0.110	0.150	0.536	0.464	1.116	0.832–1.496
Living habits during the day	None of the following					1(ref)
	drinking sugary beverages	0.604	0.212	8.112	0.004	1.830	1.207–2.773
	Eating sweets	0.308	0.187	2.705	0.100	1.361	0.943–1.965
	drinking low amounts of plain water(< 500 ml)	0.526	0.191	7.536	0.006	1.692	1.162–2.462
The time to fall asleep	Before 21:00					1(ref)
	21:00–23:00	0.457	0.232	3.886	0.049	1.579	1.003–2.486
	After 23:00	0.604	0.479	1.595	0.207	1.830	0.716–4.677
Awakening from sleep	Easy					1(ref)
	Difficult	−0.283	0.156	3.278	0.070	0.753	0.555–1.024
Sleep disorders	No					1(ref)
	Yes	0.291	0.141	4.235	0.040	1.338	1.014–1.764
Playing games before bed	No					1(ref)
	Sometimes	−0.068	0.147	0.212	0.645	0.934	0.700–1.247
	Often	−0.273	0.534	0.261	0.609	0.761	0.267–2.167
Academic performance	Poor					1(ref)
	General	−1.033	0.328	9.937	0.002	0.356	0.187–0.677
	Good	−1.276	0.326	15.346	< 0.001	0.279	0.148–0.529
Family history of NE	No					1(ref)
	Not sure	1.549	0.164	89.245	< 0.001	4.705	3.412–6.488
	Yes	2.458	0.172	204.34	< 0.001	11.680	8.336–16.355

Note: ref. = reference; NE = nocturnal enuresis; CI = confidence interval