Table 5 Means and prevalence of 25(OH)D categories based on original and standardized 25(OH)D levels of KiGGSa
Mean serum 25(OH)D levels | Serum 25(OH)D levels by thresholds of the IOM 2011 in % | |||||||
|---|---|---|---|---|---|---|---|---|
< 30 nmol/l | 30- < 50 nmol/l | > = 50 nmol/l | ||||||
Original | Standardized | Original | Standardized | Original | Standardized | Original | Standardized | |
nmol/l (95% CI) | nmol/l (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | |
Girls | 46.7 (44.1–49.3) | 53.2 (51.1–55.3) | 27.1 (22.9–31.9) | 12.5 (10.0–15.7) | 36.8 (34.4–39.2) | 33.5 (30.3–36.8) | 36.1 (31.8–40.6) | 54.0 (48.9–59.0) |
1–2 years | 62.1 (58.5–65.7) | 63.8 (61.3–66.3) | 14.2 (10.4–19.0) | 5.7 (3.5–9.0) | 24.7 (19.6–30.6) | 19.7 (15.2–25.2) | 61.1 (53.9–67.9) | 74.6 (68.5–79.9) |
3–6 years | 48.8 (45.6–52.0) | 55.3 (52.9–57.7) | 22.2 (17.7–27.4) | 9.1 (6.5–12.6) | 38.5 (34.9–42.2) | 31.8 (27.6–36.3) | 39.4 (33.9–45.1) | 59.1 (52.9–65.0) |
7–10 years | 43.5 (40.8–46.3) | 51.4 (49.1–53.7) | 28.3 (23.2–34.0) | 12.2 (9.2–16.1) | 40.2 (36.4–44.2) | 36.7 (32.2–41.3) | 31.5 (26.4–37.1) | 51.1 (44.9–57.3) |
11–13 years | 37.8 (35.3–40.3) | 46.7 (44.4–49.0) | 36.2 (30.3–42.5) | 18.9 (14.7–24.1) | 41.3 (37.1–45.6) | 41.4 (37.3–45.7) | 22.6 (18.4–27.3) | 39.6 (34.0–45.5) |
14–17 years | 48.0 (44.8–51.1) | 53.5 (51.1–56.0) | 29.0 (24.1–34.5) | 13.9 (10.8–17.6) | 34.0 (30.8–37.3) | 32.0 (28.4–35.7) | 37.0 (32.1–42.2) | 54.2 (48.6–59.7) |
Boys | 47.4 (44.6–50.2) | 53.7 (51.5–56.0) | 26.9 (22.5–31.7) | 12.5 (9.7–15.8) | 35.3 (33.1–37.6) | 32.7 (29.4–36.2) | 37.8 (33.3–42.6) | 54.8 (49.4–60.1) |
1–2 years | 66.2 (62.2–70.2) | 66.3 (63.9–68.8) | 10.8 (7.8–14.9) | 4.9 (2.8–8.2) | 23.0 (18.5–28.2) | 15.5 (11.6–20.5) | 66.2 (59.8–72.0) | 79.6 (73.7–84.5) |
3–6 years | 48.4 (44.9–51.8) | 54.6 (51.9–57.3) | 26.4 (21.1–32.4) | 11.5 (8.4–15.5) | 32.6 (29.0–36.3) | 31.5 (27.0–36.3) | 41.1 (35.2–47.2) | 57.0 (50.4–63.5) |
7–10 years | 46.4 (43.5–49.4) | 53.8 (51.4–56.3) | 23.8 (19.1–29.2) | 10.9 (8.0–14.6) | 39.4 (35.9–43.0) | 31.6 (27.2–36.3) | 36.8 (31.3–42.7) | 57.5 (51.1–63.8) |
11–13 years | 45.0 (41.5–48.5) | 52.1 (49.6–54.6) | 26.9 (22.1–32.3) | 11.0 (7.8–15.3) | 41.9 (38.5–45.5) | 39.2 (34.1–44.5) | 31.2 (26.3–36.5) | 49.8 (43.5–56.1) |
14–17 years | 42.1 (39.1–45.0) | 49.4 (47.0–51.9) | 35.7 (30.2–41.6) | 18.3 (14.4–22.9) | 34.3 (30.8–38.0) | 36.8 (33.3–40.4) | 30.0 (25.5–34.9) | 44.9 (39.4–50.7) |
Total | 47.1 (44.4–49.7) | 53.5 (51.3–55.6) | 27.0 (22.8–31.7) | 12.5 (9.9–15.6) | 36.0 (34.0–38.1) | 33.1 (30.0–36.3) | 37.0 (32.7–41.5) | 54.4 (49.3–59.5) |