Table 3.

A validation of our definition of type 1 diabetes: descriptive statistics

Sex	Age group	TP	TN	FN	FP	Sensitivity (%)	95% CI		Specificity (%)	95% CI		PPV (%)	95% CI		NPV (%)	95% CI		Kappa	Youden
Both	All	7103	1 496 465	2776	3297	0.72	0.71	0.73	1.00	1.00	1.00	0.68	0.67	0.69	1.00	1.00	1.00	0.70	0.72
Male	All	3157	852 905	1521	1588	0.67	0.66	0.69	1.00	1.00	1.00	0.67	0.65	0.68	1.00	1.00	1.00	0.67	0.67
Female	All	3946	643 560	1255	1709	0.76	0.75	0.77	1.00	1.00	1.00	0.70	0.69	0.71	1.00	1.00	1.00	0.72	0.76
Male	0–19	793	1633	41	46	0.95	0.94	0.97	0.97	0.96	0.98	0.95	0.93	0.96	0.98	0.97	0.98	0.92	0.92
Female	0–19	997	1352	41	59	0.96	0.95	0.97	0.96	0.95	0.97	0.94	0.93	0.96	0.97	0.96	0.98	0.92	0.92
Male	20–39	773	31 073	150	300	0.84	0.81	0.86	0.99	0.99	0.99	0.72	0.69	0.75	1.00	0.99	1.00	0.77	0.83
Female	20–39	850	33 441	203	326	0.81	0.78	0.83	0.99	0.99	0.99	0.72	0.70	0.75	0.99	0.99	0.99	0.75	0.80
Male	40–59	945	250 927	546	623	0.63	0.61	0.66	1.00	1.00	1.00	0.60	0.58	0.63	1.00	1.00	1.00	0.62	0.63
Female	40–59	1124	129 013	328	562	0.77	0.75	0.80	1.00	1.00	1.00	0.67	0.64	0.69	1.00	1.00	1.00	0.71	0.77
Male	60–	646	569 272	784	619	0.45	0.43	0.48	1.00	1.00	1.00	0.51	0.48	0.54	1.00	1.00	1.00	0.48	0.45
Female	60–	975	479 754	683	762	0.59	0.56	0.61	1.00	1.00	1.00	0.56	0.54	0.58	1.00	1.00	1.00	0.57	0.59

FN, false negative; FP, false positive; NPV, negative predictive value; PPV, positive predictive value; TN, true negative; TP, true positive.