Table 1 Proportion (%) of patients who have radiographic osteoarthritis in specified age-groups of populations with knee pain.
Study | Age Group | Radiographic View | Proportion (%) | OA Definition | Population |
|---|---|---|---|---|---|
Petersson [19] | 31–54 | A/Pwb | 15 | Ahlb ≥ 1 | All |
K&L 2+ | |||||
Lachance [13] | 40–53 | A/P | 15 | K&L 2+ | CA |
40 | AA | ||||
Hart [18] | 45–65 | A/Pwb | 19 | K&L 2+ | All |
Hannan [25] | 51–74 | A/P | 15 | Def Ost | All |
Lanyon[8] | 40–80 | A/Pwb + S/L | Grade 1+ 63% | Altman | All |
Grade 2+ 30% | ≥ Grade I | ||||
Grade 3 12% | Ost [32] | ||||
Claessens [3] | > 45 | A/Pwb | 36 | K&L 2+ | All |
Cicuttini [11] | > 45 | Lateral Flexed wb | 30 | Def | Female |
S/L | 53 | Ost | Female | ||
Cicuttini [26] | > 45 | A/Pwb | 37 | Ost | Female |
Lateral | 37 | JSN | Female | ||
S/L | 51 | or both | Female | ||
Odding [14] | > 55 | A/Pwb | 39 | K&L 2+ | All |
McAlindon [17] | > 55 | A/Pwb + Lateral | 76 | K&L 2+ | All |
Brandt [24] | > 65 | A/Pwb + Lateral | 49 | K&L 2+ | All |
Lethbridge [10] | 19–92 | A/P | KL 2+ 53% | K&L 2+ | All |
KL 3+ 22% | |||||
KL 4 2% | |||||
Williams [21] | 51–80 | A/Pwb + Lat Flexed | 43 | K&L 2+ | All |