Table 1. Number of infants participating in the National Health Screening Program.

Age (mon)	Birth weight group			Total
	2.5–3.99 kg	4.0–4.49 kg	≥ 4.5 kg
6	280,282 (73.0)	8,676 (72.2)	519 (67.2)	289,477 (72.9)
12	281,546 (73.3)	8,604 (71.6)	527 (68.2)	290,677 (73.2)
24	310,941 (80.9)	9,620 (80.1)	597 (77.3)	321,158 (80.9)
36	307,983 (80.2)	9,459 (78.7)	650 (76.5)	318,092 (80.1)
48	289,360 (75.3)	8,776 (73.0)	580 (68.2)	298,716 (75.2)
60	254,836 (66.3)	7,790 (64.8)	525 (61.8)	263,151 (66.3)
72	278,003 (72.4)	8,497 (70.7)	550 (64.7)	287,050 (72.3)

Data are presented as number (%)