Table 2.
Age-specific proportions of underweight in participants among outpatients, inpatients and general populations
| Total |
Male |
Female |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Age (years) | Outpatients % (n) | Inpatients % (n) | General populations %* (n) | p Value | Outpatients % (n) | Inpatients % (n) | General populations %* (n) | p Value | Outpatients % (n) | Inpatients % (n) | General populations %* (n) | p Value |
| 20–29 | 6.9 (17/247) | 11.7 (32/273) | 14.9 (238/1578) | 0.001† | 4.8 (6/124) | 11.3 (18/160) | 7.2 (58/759) | NS† | 8.9 (11/123) | 12.4 (14/113) | 21.8 (180/819) | <0.001† |
| 30–39 | 5.5 (46/841) | 8.6 (72/835) | 11.1 (328/2901) | <0.001† | 2.9 (14/486) | 9.9 (49/496) | 4.1 (56/1328) | <0.001† | 9.0 (32/355) | 6.8 (23/339) | 17.1 (272/1573) | <0.001† |
| 40–49 | 3.1 (38/1230) | 11.1 (203/1827) | 7.8 (241/3135) | <0.001† | 2.9 (22/771) | 10.8 (114/1052) | 3.8 (46/1398) | <0.001† | 3.5 (16/459) | 11.5 (89/775) | 11.1 (195/1737) | <0.001† |
| 50–59 | 3.3 (43/1290) | 14.3 (434/3038) | 5.9 (197/3366) | <0.001† | 2.7 (21/772) | 13.5 (235/1747) | 2.3 (36/1431) | <0.001† | 4.2 (22/518) | 15.4 (199/1291) | 8.6 (161/1935) | <0.001† |
| 60–69 | 3.7 (48/1284) | 19.3 (954/4954) | 6.3 (276/5040) | <0.001† | 3.1 (23/750) | 17.6 (464/2632) | 3.2 (72/2266) | <0.001† | 4.7 (25/534) | 21.1 (490/2322) | 8.9 (204/2774) | <0.001† |
| ≥70 | 7.3 (40/549) | 23.7 (786/3310) | 7.7 (432/5741) | <0.001† | 8.2 (20/244) | 20.8 (299/1437) | 5.5 (134/2506) | <0.001† | 6.6 (20/305) | 26.0 (487/1873) | 9.5 (298/3235) | <0.001† |
| Total | 4.3 (232/5441) | 17.4 (2481/14 237) | 7.9 (1712/21 761) | <0.001† | 3.4 (106/3147) | 15.7 (1179/7524) | 4.1 (402/9688) | <0.001† | 5.5 (126/2294) | 19.4 (1302/6713) | 10.9 (1310/12 073) | <0.001† |
*Data of the general population are quoted from a national survey by the Ministry of Health and Welfare.16
†Data are analysed using χ2 test among outpatients, inpatients and general populations.